Story highlights Ted Cruz sought to dampen Donald Trump's momentum after his New York rout

The Texas senator said nobody would get the 1,237 delegates necessary

Washington (CNN) Ted Cruz on Wednesday sought to dampen any momentum that could come from Donald Trump's rout in New York, arguing the billionaire was no likelier to win their party's presidential nomination than he was.

The Texas senator appeared more certain than ever that the Republican primary was headed toward a contested convention, expressing confidence that no candidate -- including himself -- would win the 1,237 delegates needed for a first-ballot clinch.

It's an argument Cruz took personally to party elites in Florida later Wednesday, when he pitched himself to members of the Republican National Committee. GOP rival John Kasich is also expected to brief RNC members.

"We are headed to a contested convention. At this point, nobody is getting 1,237," Cruz told Philadelphia radio host Chris Stigall on Wednesday morning. "Donald is going to talk all the time about other folks not getting to 1,237. He's not getting there, either."

Cruz reiterated his belief that the GOP is heading toward a contested convention while speaking with CNN's Sunlen Serfaty in Hershey, Pennsylvania, Wednesday morning.

Read More