Senator Ted Cruz and Gov. John Kasich of Ohio have agreed to coordinate in future primary contests in a last-ditch effort to deny Donald J. Trump the Republican presidential nomination, with each candidate standing aside in certain states amid growing concerns that Mr. Trump cannot otherwise be stopped.
In a statement late Sunday night, Mr. Cruz’s campaign manager, Jeff Roe, said that the campaign would “focus its time and resources in Indiana and in turn clear the path for Governor Kasich to compete in Oregon and New Mexico.”