UPDATE: A source close to Senor's camp says there is nothing planned.

"There is no info to report yet on a public announcement," the source said. "All of the steps needed to assemble a statewide campaign team and infrastructure are being taken, but no public announcement is set as of right now."

The New York Daily News reports that Dan Senor is set too announce a run against Sen. Kirsten Gillibrand (D-N.Y.) this week.

Liz Benajmin writes that the announcement is expected Wednesday or Thursday.

Republicans need warm bodies in races like New York, Washington and Wisconsin. Senor should give them a capable candidate who they hope can raise enough money to take advantage of a favorable national environment.

Gillibrand's numbers improved a little when former Rep. Harold Ford Jr. (D-Tenn.) was making noise about the race. But she's hardly bulletproof at this point.