...what Mrs. Patrick thinks about the US Senate election!

Diane Patrick, the governor’s wife, issued an impassioned plea yesterday to elect US Representative Michael E. Capuano to the US Senate, but the congressman hedged when asked whether her support might help him against Attorney General Martha Coakley, the perceived front-runner and sole woman candidate.

“It’s more personal than anything else to me,’’ Capuano said of the endorsement. “I’ve said from day one, I’m not concerned about gender issues.’’

Although Governor Deval Patrick remains officially neutral in the four-way Democratic primary race, his wife called Capuano a “tenacious fighter’’ who would make a difference on the Senate floor.

“Mike is, number one, a brilliant strategist, and I don’t mean that in the sense of campaigning, but in the sense of getting the job done,’’ Patrick said at a campaign stop before about 150 people at the Dedham Community Theater. “What you see in Mike Capuano is what you get. He is the most genuine man I know.’’

The primary election, to be held Dec. 8, also includes political newcomers Stephen G. Pagliuca and Alan Khazei.

The endorsement by Diane Patrick, a law partner at Ropes & Gray, follows similar public support for Capuano from US House Speaker Nancy Pelosi and Kitty Dukakis, the wife of former Massachusetts governor Michael S. Dukakis.

Capuano said he is “proud’’ to receive Patrick’s backing, which follows the congressman’s early support for her husband’s gubernatorial campaign. But when asked to rate its importance, Capuano replied, “I have no idea.’’

UPDATE: More from Howie Carr and Jeff Jacoby.

SECOND UPDATE: More from the Boston Herald.

THIRD UPDATE: More from the Globe, Michael Graham, Holly Robichaud and the Herald.