OFF TO THE RACES: Biden: "I regret" not running "every day"
Joe Biden told NBC Connecticut of his decision not to run for president: "I regret it every day. But it was the right decision for my family and me."
Msnbc's Alex Seitz-Wald has a good wrap of all of yesterday's back-and-forth on the establishment side of the GOP.
BUSH: He honed in on Chris Christie's fiscal record in an interview with The Washington Post Wednesday, saying "My broad point is that my record I think is the one that, if you compare the three governors, in spite of their talents, is the best one."
NBC's Jordan Frasier writes that Jeb Bush is serious about calling Donald Trump a "jerk." MORE: "When anybody disparages people with disabilities, it sets me off," he said. "That's why I called him a jerk."
CLINTON: CBC chair G.K. Butterfield has endorsed Hillary Clinton
The Washington Post's take on how Bill's past is being brought up on the campaign trail. "The fresher case being made is that Hillary Clinton has been, at a minimum, hypocritical about her husband's treatment of women, and possibly even complicit in discrediting his accusers. And it is being pressed at a time when there is a new sensitivity toward victims of unwanted sexual contact, and when one of the biggest news stories is the prosecution of once-beloved comedian Bill Cosby on charges that he drugged and assaulted a woman 12 years ago — one of dozens who have accused him of similar behavior."
She's holding an event on Asian-American outreach in California today.
CHRISTIE: He conceded that he's "changed my mind" on guns.
CRUZ: Never a big Cruz fan, John McCain told a Phoenix radio station that he doesn't know if the Texas senator is eligible to be president.
The Wall Street Journal has a good wrap of Cruz's back-and-forth with ethanol backers in Iowa.
O'MALLEY: NBC's Monica Alba wraps last night's "Battle Born Battleground" Democratic dinner in Nevada last night.
RUBIO: He's been flying almost exclusively in chartered aircraft for the last two months, POLITICO reports.
He's out with a new ad highlighting his Christian faith.
Glenn Beck says he likes Rubio as his second choice candidate for president.
PAUL: He's prodding Ted Cruz over the citizenship issue, too.
SANDERS: Is Clinton's Nevada firewall vulnerable to a challenge from Sanders? POLITICO takes a look.
TRUMP: Ross Douthat in the New York Times: "There is no credible scenario in which a consistent 30 percent of the vote will deliver the delegates required to be the Republican nominee. So for Trump to lose, he doesn't actually have to collapse; he just has to fail to expand his support. And in the states where candidates are actually campaigning, voters are paying the most attention, and the polling screens for likely voters are tightening, he hasn't expanded his support meaningfully since he first climbed into the lead."
It could get messy in Burlington tonight. From the Burlington Free Press: "Vermonters who plan to see Republican presidential candidate Donald Trump speak on Thursday should prepare for "airport-like" security and sizable crowds after the campaign issued tickets for more than 10 times the number of available seats, the Flynn Center's executive director says... Outside the venue, city officials are concerned after learning the Trump campaign issued far more free tickets than there are available seats. As of midday Wednesday, police said the campaign had distributed about 20,000."
OBAMA AGENDA: Profiling Chief of Staff McDonough
POLITICO offers a long look at Denis McDonough's tenure.
*** Thursday's "Andrea Mitchell Reports" line-up: Joining Andrea Mitchell today at 12p -- former Secretary of Defense and CIA director Leon Panetta in an exclusive live interview, the Washington Post's Anne Gearan and Chris Cillizza, MSNBC's Joy Reid, plus NBC's Kristen Welker, Hallie Jackson and Katy Tur out on the 2016 campaign trail.