U.S. Sen. Michael Bennet has the endorsement of President Obama, but now his challenger for the Democratic nomination in the Senate race, Andrew Romanoff, has the support of former President Bill Clinton.
In a pitch for campaign donations, Clinton signed a letter that heralds Romanoff's leadership as Speaker of the House and in uniting the Democratic Party.
Who's to say whether Obama's or Clinton's endorsement carries more weight. But consider this:
— Gallup pollsters report Obama's approval rating fell to 44 percent earlier this month. His high mark, 69 percent, came as he took office in January 2009.
— Clinton had an average approval rating of 55 for his two terms, ending in January 2001, and reached a high of 73 percent, according to Gallup pollsters.
Here's what Bill had to say about Andrew: