A Valentine's Day Breakthrough for Payroll Tax Cut Negotiations on Capitol Hill - Developing and our Sunlen Miller and John Parkinson will be tracking -http://abcn.ws/yd5LqP

Santorum's Favorability Advances, Matches Romney Among Republicans. BUT - according to a new ABC News / Washington Post Poll, both men's 60 percent favorability trails where frontrunners were four years ago. From Gary Langer - "Romney and Santorum's ratings are well behind those of John McCain, who had 76 percent, and Rudy Giuliani, 71 percent, among Republicans in an ABC/Post poll in January 2008. Romney was at 58 percent in that poll, very similar to where he is now; Mike Huckabee was at 65 percent. In that same survey, Hillary Clinton had an 85 percent favorability rating among Democrats, Barack Obama 80 percent, John Edwards 72 percent - again all substantially higher than Romney and Santorum in their party today. http://abcn.ws/A7S8Av

Heightened Level of U.S. Security Over Iran Threat - Israeli officials told ABC News that the level of personal security on high-ranking Embassy officials as well as other, lower profile officials in the U.S. is at its highest in at least five years, a response to what they called "a coordinated series of attacks." When Israeli officials travel to and from events, ABC News has observed a notable increase in the security presence.  http://abcn.ws/x4bUqq

Meet Xi Jinping -  Daughter at Harvard, folk singer wife, VP of China Who is he? http://abcn.ws/yFCSo8 What'd he do today? http://abcn.ws/AeFjGy

Valentine's Day News - Candy Hearts - A Valentine's Day piece of analysis from Amy Walter - what should politicians candy hearts say? Newt's, obviously, "2 the Moon." http://abcn.ws/xY7ZlO

J. Crew Hearts Obama - J. Crew's president say the First Lady "the most incredible gift that keeps on giving," crediting her with the brand's "huge lift" in business. http://abcn.ws/AyWZhw

Barack Obama Hearts Michelle Obama, Urges Dudes to "Go Big" on V-Day. (At first we thought he said "Go Bake," which would have been cool and weird too.) http://abcn.ws/yjR5N1

Googlers Don't Heart Anyone - Romney's New Google Problem and the Universal Auto complete issue - http://abcn.ws/zB0gr2

Gingrich and Callista V-Day Plans, according to Newt in Calif., Monday - "All I can promise is that I believe she will be quite happy. I think for the first time in a while we'll have a private dinner and just hopefully exchange gifts and, you know reconnect a little bit…No more details!"

Flashback - Rick Santorum's Medical Malpractice Lawsuit - Back in 1999, the senator testified in his wife's $500,000 malpractice lawsuit against her chiropractor, despite a bill he sponsored supporting malpractice caps of $250,000. Read about it from Jonathan Karl and watch Cynthia McFadden confront Santorum about it in a bookstore in 2005 - http://abcn.ws/zQlre0

Pro-Romney Super PAC Restore Our Future Thinking Beyond Super Tuesday - Supporters of Romney, despite big upcoming contests in Arizona and Michigan ad Super Tuesday next month, are already thinking about the road beyond. http://abcn.ws/yu5Wut

Mitt Romney, the Comic Book - A comic book featuring Mitt Romney will be available in book stores and on Amazon this Wednesday as part of the "Political Power" comic series. http://abcn.ws/zeeKrl

Obama Appeals for Public Outcry on Payroll Taxes - http://abcn.ws/zBT7Ls

In Santorum's Surge, Endorsements Don't Mean a Thing - http://abcn.ws/w3hfG3

Mitt Romney Defends 'Managed Bankruptcy' for Auto Firms in Op-Ed - http://abcn.ws/zSLd0C

Anti-PAC Irony: Outside Group Writes Pact Banning Outside Groups in Montana Senate Race - http://abcn.ws/yx8n7X

Poll: Americans Divided Over Contraception Mandate - http://abcn.ws/yKPjvC

Top 5 Political Whippersnappers - http://abcn.ws/xIzp5N