ATF leader's email could be Fast and Furious smoking gun and Holder admitted Obama can't shield it  —  A single internal Department of Justice email could be the smoking-gun document in the Operation Fast and Furious scandal — if it turns out to contain what congressional investigators have said it does.

Democrats May Drop Speedway Event At Charlotte Convention  —  Democrats are considering canceling their political convention's kick-off event at the Charlotte Motor Speedway, as party planners grapple with a roughly $27 million fundraising deficit, according to two people familiar with matter.

Romney: If health law invalidated, Obama's first term was a waste  —  Presumptive Republican presidential nominee Mitt Romney argued Tuesday that if the president's signature healthcare legislation was overturned Thursday by the Supreme Court, it would mean that President Obama's first term was a waste.

What Happened Tonight  —  So anyone following along on twitter know the basics.  I was SWATted tonight.  My wife was down in the basement, and unknown to me she had fallen asleep in an uncomfortable position while watching TV.  I was just finishing up a post where I was going to share …

Top Republican Senator Suggests Impeaching Obama Over Immigration Policies  —  Sen. Jon Kyl (R-AZ) floated the possibility of impeaching President Obama over the administration's recent decisions on immigration, during an appearance on Bill Bennett's radio show on Tuesday.

Google scientists find evidence of machine learning  —  A neural network created by connecting 16,000 computer processors appears to support biologists' theories on how the human brain identifies objects.  Hint: It's all about the cats.  —  Follow @stevenmusil

Brown, Warren tied  —  PPP's newest poll on the Massachusetts Senate race finds it dead even, with Elizabeth Warren and Scott Brown both at 46%.  Warren's now been at that exact same 46% mark in three PPP polls in a row dating back to last September.  Brown's increased his support from levels …

Confrontation With TSA Agent Leaves Grandpa's Ashes On Floor  —  Indianapolis Man Furious Over Treatment At Florida Airport Checkpoint  —  INDIANAPOLIS — A man's attempt to bring the ashes of his grandfather home to Indianapolis ended with an angry scene in a Florida airport, with the ashes spilled on the terminal floor.

EPA wins big in court challenge on greenhouse gases  —  In a surprisingly sweeping win for the Obama administration, a federal appeals court said Tuesday that the EPA is “unambiguously correct” in its interpretation of the Clean Air Act when it comes to regulating greenhouse gases.

On Orbitz, Mac Users Steered to Pricier Hotels  —  Orbitz Worldwide Inc. has found that people who use Apple Inc.'s Mac computers spend as much as 30% more a night on hotels, so the online travel agency is starting to show them different, and sometimes costlier, travel options than Windows visitors see.

Obama lead in Ohio down to 3  —  Barack Obama continues to lead Mitt Romney in Ohio, 47-44.  But that's Obama's weakest showing in the state in PPP's polling since last October.  He had led by 50-43 and 49-42 spreads in our two previous 2012 polls.  —  The big decline for Obama over the last couple months has been with white voters.

“Please God.  Please make it stop.”  —  I have been forced to leave Cairo prematurely following a horrific sexual and physical attack in Tahrir Square.  —  The atmosphere was one of jubilation, excitement, and happiness as I walked, accompanied by two male companions for safety along Kasr El Nil bridge.

Pay Those Bills On Time Or Forfeit Right To Vote  —  If the 2012 general election winds up as a close GOP win, the odds are very high that the national GOP drive to restrict the franchise will deserve significant credit or blame.  You tend to think, quite rightly, of Florida as Ground zero …

On Booze, Meth, Suicide... and GOProud  —  Gay people abuse drugs, alcohol, and tobacco at higher rates than straight people do.  We also commit suicide at higher rates.  The haters on the religious right argue that these higher rates of self-harming behaviors are proof that the gay “lifestyle” is inherently dangerous and unhealthy.

Government wants more people on food stamps  —  NEW YORK (CNNMoney) — More than one in seven Americans are on food stamps, but the federal government wants even more people to sign up for the safety net program.  —  The U.S. Department of Agriculture has been running radio ads …

Senate leaders: Deal on student loans, pending House GOP approval  —  Senate leaders say they have a deal on student loan legislation, pending approval by House Republicans, who have unexpectedly balked at Senate deals before.  —  Senate Majority Leader Harry Reid (D-Nev.) …

The U-Va. president drama: Is it the Queen Bee scenario?  —  Let's be honest here.  —  Is the drama over the ouster of the University of Virginia's president so compelling because it makes us stare down the death of our culture's sacred, wood-paneled, leather-bound idea of higher education?

The Power of the Particular  —  They say you've never really seen a Bruce Springsteen concert until you've seen one in Europe, so some friends and I threw financial sanity to the winds and went to follow him around Spain and France.  In Madrid, for example, we were rewarded with a show …

VA & CO  —  We Ask America picks up its Big Ten presidential series with the two bookends of the mix: Virginia and Colorado.  —  VIRGINIA:  —  Virginia also has a barn-burner race for the U.S. Senate (that may be greatly influence by the presidential election) pitting Republican former Senator George Allen …

Stuck In A Box  —  Want to better understand the bind Mitt Romney is in with respect to taking a stand on immigration?  Watch his surrogate's twisting this morning to get an idea.  —  Paul Werdel  —  Paul Werdel is an Associate Editor at TPM.  Before joining TPM he was a News Editor …