Liz Halloran

The morning after Republican Gov. Scott Walker of Wisconsin handily rebuffed Democratic efforts to oust him, politicos in the state and beyond pored over exit poll data and turnout numbers to tease out:

A: How he did it.

B: Where Democrats failed.

My colleague Ron Elving, NPR's senior Washington editor, took a good shot at answering Question A Wednesday morning.

Don Taylor, one of Wisconsin's most influential Republicans, had predicted that GOP Gov. Scott Walker would stave off recall challenger Tom Barrett, a Democrat, by a couple of percentage points.

When Wisconsin State Sen. Dale Schultz goes to the polls Tuesday, he will vote for GOP Gov. Scott Walker in the gubernatorial recall election.

"I'm a Republican," Schultz said during an interview in his Capitol office in Madison, on the eve of the state's historically acrimonious and expensive recall election.

But if the Democratic candidate, Milwaukee Mayor Tom Barrett, succeeds in ousting Walker, Schultz, 58, says, "I'm going to do everything I can to make him successful, too."

What a week it was to have been for Mitt Romney.

But what a week it wasn't.

Poised to triumphantly clinch the Republican nomination for president, Romney instead was upstaged Tuesday by supporter Donald Trump's new birther-on-steroids shtick that stole the headlines and the candidate's big moment.

Then on Thursday, ready to embarrass President Obama by holding a "surprise" press event in front of Solyndra, the Obama-touted California solar energy company that failed after getting a $535 million government loan guarantee, Romney was upstaged yet again.

A new survey of Wisconsin voters shows GOP Gov. Scott Walker maintaining his lead over Milwaukee Mayor Tom Barrett, the Democrat who is trying to oust the governor in a recall election Tuesday.

And the survey had good news for President Obama: during the last half of the month, he improved his standing against GOP presidential candidate Mitt Romney in Wisconsin.

Republican National Committee Chairman Reince Priebus said Wednesday he is "very confident" that Wisconsin GOP Gov. Scott Walker will survive next week's recall election.

And Priebus, a Wisconsin native, said that a Walker win Tuesday over Democratic challenger Tom Barrett would mean "a much tougher road in Wisconsin" for President Obama in November's general election.

The most potentially influential politician you've probably never heard of, former two-term Maine Gov. Angus King, on Tuesday officially entered the race to replace retiring moderate GOP Sen. Olympia Snowe.

King, 68, an alternative-energy entrepreneur and supporter of President Obama, filed more than 6,000 signatures with Maine's secretary of state to ensure his place on November's ballot.

He'll run as an independent, as he did for his successful gubernatorial runs in the 1990s.

The divisive battle to recall Wisconsin Gov. Scott Walker moves into its final phase in coming days with debates, a continuing flood of out-of-state ad money, and polls that suggest the incumbent is poised to fend off Democratic challenger Tom Barrett.

Here's a look at where things stand between the Republican Walker and Barrett, the mayor of Milwaukee, heading into Friday night's televised debate, the first of two before the June 5 rematch. (Walker defeated Barrett in the 2010 governor's race, 52.2 percent to 46.5 percent.)

As sort-of-still-a-presidential-candidate Ron Paul continues to collect delegates at state Republican Party conventions, the question of what the libertarian Texas congressman wants has become more urgent in GOP circles.

A speaking role at the Republican convention, where Mitt Romney is expected to accept the nomination?

A seat at the party's rule-making table to advocate making it easier for non-mainstream candidates to compete in future GOP nominating contests?

Well, yes, as a start.

Following the release of what his campaign called his first ad of the general election, Romney participated in a "tele-town hall" with supporters in the swing states where the ad is running: Virginia, North Carolina, Ohio, and Iowa.

Battleground states like North Carolina are where the action is when it comes to presidential contests. Thus, they are where political tactics like, say, the anti-Obama ad campaign featuring the Rev. Jeremiah Wright, first reported by The New York Times Thursday (and now disowned by virtually everyone the Times linked to it), are most likely to be rolled out.

One of the highest-profile political matchups of the season is playing out in Virginia, where two former governors with powerful friends and big-money backing are battling to succeed retiring Democratic Sen. Jim Webb.

The dead-heat matchup pits Democrat Tim Kaine, 54, a favorite of President Obama and a former Democratic National Committee chairman, against George Allen, 60, namesake of his legendary Washington Redskins football coach father and a U.S. senator until undone in a re-election bid by what has become known as his "macaca moment."

Presidential candidate Ron Paul is not expected to ultimately endorse presumptive GOP nominee Mitt Romney, Paul's chief strategist said Tuesday.

"Never say never, but I don't believe that's likely," said Jesse Benton, during a half-hour-plus give-and-take with reporters.

Republican Ron Paul is not shuttering his presidential campaign, his chief strategist says in a memo sent this morning to supporters and the news media.

"Let me be very clear," said Jesse Benton, "Dr. Paul is NOT dropping out or suspending his campaign."

"As Dr. Paul has previously stated, he is in this race all the way to the Republican National Convention in Tampa this August," Benton said. The campaign will, though, be "maximizing our resources" by not investing in remaining primary states, he said.

Richard Mourdock is the first to admit he's lacking in the political flash-and-dash department.

"I never got hit with the charisma stick when I was lying there in the nursery," the newly crowned Indiana Republican Senate candidate told NPR in a recent interview.

But Mourdock, 60, who on Tuesday toppled six-term Republican Sen. Richard Lugar in a GOP primary, is a determined if not dynamic campaigner, those who know him say, and no newcomer to the trail.

Voters in Indiana, Wisconsin and North Carolina on Tuesday will decide the outcome of battles many see as proxy wars going into the fall elections.

-- In Indiana, voters will determine the fate of six-term Republican Sen. Richard Lugar, 80, a respected legislator who has run afoul of Tea Party activists.

-- In Wisconsin, they'll pick a Democrat from a field of four whose aim it will be to oust anti-union Republican Gov. Scott Walker in a June recall election prompted by his slashing of collective bargaining rights.

The end of Republican Sen. Richard Lugar's 35-year career representing Indiana in the U.S. Senate could be imminent.

A new Howey/DePauw Indiana Battleground Poll shows the octogenarian trailing State Treasurer Richard Mourdock by 10 percentage points ahead of Tuesday's GOP Senate primary. The survey also finds that the venerable Lugar is increasingly viewed by home-state voters in a negative light.

The political civil war that has gripped Wisconsin since Republican Gov. Scott Walker's 2010 election will intensify next week when Democrats pick a candidate to post up against the governor in a historic recall election in June.

Tuesday's Democratic gubernatorial primary has developed into a two-person race between Milwaukee Mayor Tom Barrett, who lost to Walker in the GOP landslide of 2010, and former County Executive Kathleen Falk, the favorite of the state's public employee unions.

President Obama is leading presumed GOP nominee Mitt Romney big in recent national polls.

No, wait. Polls show he's trailing Romney by a couple of percentage points.

Oh — this just in: Obama is actually leading Romney, but the race is tightening.

It's a general election poll-a-palooza out there, people.

But what do all the numbers mean?

"I have friends who support Obama, and friends who support Mitt Romney," says Scott Keeter, survey research director at Pew Research Center. "I tell them not to get too excited or too depressed at this point."

After going 0-for-3 in Tuesday's presidential primaries, a defiant Rick Santorum dismissed calls to drop out and predicted he'll win the next contest in his home state of Pennsylvania on April 24.

He'll have to — and not because it would put the former Pennsylvania senator on a path to defeat front-runner Mitt Romney, who has been racking up delegates and is increasingly seen as the inevitable nominee.

A loss in Pennsylvania, where recent polls show Santorum is weakening, would "destroy the rationale for him continuing," says Pennsylvania pollster G. Terry Madonna.