According to The Hill, one of Hillary Clinton’s longstanding supporters has defected to Governor Martin O’Malley.

The Miami Herald explains, “as Miami mayor, Manny Diaz backed Hillary Clinton in the 2008 Democratic presidential primary. But now he’s hosting a breakfast for former Maryland Gov. Martin O’Malley, a potential Clinton rival in 2016.”

To say that Diaz is excited about a potential O’Malley run is probably an understatement. Diaz told the Miami Herald, “He’s not running yet, but I’ll tell you, if he does run, I will endorse him. He’s an old friend, and I’m very loyal to old friends.”

Diaz praised O’Malley’s work as Baltimore mayor and noted he visited him when he first got elected in Miami. Diaz ended up using Baltimore’s 311 call system as a model for his own city.

“He’s very data-driven, results-oriented, ‘let’s see how we’re doing, let’s measure ourselves,'” Diaz said. Plus, he has a soft spot in his heart for executives: In 2008, as head of the U.S. Conference of Mayors, Diaz said he met separately with Clinton and Barack Obama and urged them to run as “mayor of the United States.”

“When you look at what mayors do, and in this case what governor’s do — and he’s been both, so he’s actually run something,” Diaz said. “He’s run two governments.”

Diaz donated $2,300 to Clinton’s 2008 presidential campaign, according to The Hill.

To make matters worse for Hillary, a source close to Carly Fiorina indicated this afternoon that she’ll officially launch her presidential campaign May 4.

The Wall Street Journal reported this that the former HP Exec and California resident will kick off her White House bid May 4 online, followed by a conference call for national press.

Fiorina has been vocal in her opposition of Hillary Clinton. Likely to be the only woman in the GOP 2016 field, Fiorina would be a counter-weight to the sexist preferential treatment given to Mrs. Clinton; a role Fiorina welcomes.

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