It's nice to have Chuck SchumerCharles (Chuck) Ellis SchumerDemocrats now attack internet rules they once embraced Schumer: Trump budget would ‘cripple’ gun background checks Schumer: Senate Republicans' silence 'deafening' on guns, Russia MORE on your side.

Dan Senor became that latest politician to weigh a challenge to Sen. Kirsten GillibrandKirsten Elizabeth GillibrandAmerican women will decide who wins and loses in 2018 elections Dems ponder gender politics of 2020 nominee Calls mount from Dems to give platform to Trump accusers  MORE (D-N.Y.), only to recoil when it came time to make a decision.

Senor, a former spokesman for the U.S.-led Coalition Provisional Authority in Iraq, said it wasn't the right time.

"Over the past few weeks, I took a very serious look at running for the Senate seat in New York," he said in a statement. "I ultimately decided this wasn’t the right time in my family and business life for me to run."

Senor had been talking to campaign advisers and building the infrastructure for a bid, and early this week the New York Daily News reported that he was primed to enter the race.

But Senor said he will instead support another GOP candidate.

“I was privileged to meet so many thoughtful, impressive, and energetic people as I explored this race, and I was very gratified by their enthusiasm," he said. "I will continue to look for ways to advance the policy debate here in New York, especially on issues that I am most concerned about: America's declining economic competitiveness, skyrocketing deficits and taxes, a national security strategy that is drifting and a morally equivalent foreign policy that is troubling."

Others who have dipped their toe in the water before opting not to run included Reps. Pete King (R-N.Y.), Carolyn McCarthyCarolyn McCarthyWhy Congress needs an openly atheist member, now Lobbying World Lobbying world MORE (D-N.Y.), Steve Israel (D-N.Y.), and Carolyn Maloney (D-N.Y.), as well as former Rep. Harold Ford Jr. (D-Tenn.), former New York Mayor Rudy Giuliani (R) and NYDN publisher Mort Zuckerman.