A few noteworthy details have emerged regarding the U.S. Senate campaigns of Democrats Michael Bennet and Andrew Romanoff. One of them is the fact that Bennet (top left) continues to win union support, once thought to be the exclusive domain of his opponent.

With today’s caucuses looming, the American Federation of State, County, and Municipal Employees gave its nod to Bennet yesterday for backing the public option in health-care reform and “pushing to create and save jobs across Colorado,” reports Politico.

AFSCME joins the local chapter of the Service Employees International Union in its approval of the state’s junior senator.

Another notable tidbit comes from the latest survey by Public Policy Polling, which finds that Latinos are more likely to support Romanoff (via The Huffington Post), although Bennet claims some solid support in this demographic—from elected officials like Congressman John Salazar and Denver City Councilman Paul Lopez to the executive directors of groups like the Latina Initiative and Rights for All People.

Overall, the polling group gives Bennet a slight edge over Romanoff (bottom left) in a survey conducted earlier this month (via Politics Daily), although a Rasmussen poll we pointed to last week had Romanoff ahead. In the latest poll, Bennet leads Romanoff, 40 percent to 34 percent, with 26 percent undecided.

Meanwhile, on the Republican side, former Lieutenant Governor Jane Norton leads her closest competitor, Weld County District Attorney Ken Buck, 34 percent to 17 percent, with 32 percent undecided. All other candidates lag back in the single digits.

Norton is the subject of a television attack ad by the Virginia-based Declaration Alliance, an Alan Keyes-backed group that aims to “politically frighten and eventually replace RINO (Republican in Name Only), ‘Money is God’ incumbents like John McCain.” 9News performs a truth check on the ad, finding at least one claim false.