In an extraordinary move, Donald Trump's Republican rivals late Sunday announced plans to coordinate primary strategies in upcoming states to deprive the GOP front-runner of the delegates needed to win the Republican nomination. Ted Cruz and John Kasich issued near-simultaneous statements outlining an agreement that may be unprecedented in modern American politics. The Kasich campaign will give Cruz "a clear path in Indiana." In return, the Cruz campaign will "clear the path" for Kasich in Oregon and New Mexico. "Having Donald Trump at the top of the ticket in November would be a sure disaster for Republicans," Cruz's campaign manager, Jeff Roe, said in a statement explaining the new plans. "Not only would Trump get blown out by Clinton or Sanders, but having him as our nominee would set the party back a generation." Added Kasich's chief strategist, John Weaver, "Our goal is to have an open convention in Cleveland, where we are confident a candidate capable of uniting the party and winning in November will emerge as the nominee." The arrangement marks a sharp reversal for Cruz's team, which aggressively opposed the idea of a coordinated anti-Trump effort as recently as late last week. Yet it underscores a bleak reality for the billionaire businessman's Republican foes: Time is running out to stop him. The announcement came less than 48 hours before voting begins across five Northeastern states where the New York billionaire is poised to add to his already overwhelming delegate lead. Trump campaigned Sunday in Maryland, which will vote on Tuesday along with Rhode Island, Connecticut, Pennsylvania and Delaware. Speaking to several thousand people in an airplane hangar in Hagerstown, Maryland, Sunday evening, Trump stressed repeatedly that he expects to win the 1,237 delegates needed in the first round of voting to stave off a contested convention. "I only care about the first. We're not going for the second and third and fourth and fifth," said Trump. Even before the plan was announced, Cruz all but abandoned the Northeastern states in favor of Indiana, which holds its primary on May 3. Both Cruz and Kasich had cast the state as a critical turning point. Under the terms of the new agreement, however, Kasich will allow Cruz take on Trump without interference. As recently as three days ago Kasich's campaign announced investments in Indiana, including the opening of two offices and the creation of a campaign leadership team. And he had planned to campaign there Tuesday, with a town hall and gathering in Indianapolis to watch the results of Tuesday's primaries. Those events have been canceled. As Kasich backs out of Indiana, Cruz promised to not compete in primary contests in Oregon on May 17 and New Mexico on June 7. "We will focus our time and resources in New Mexico and Oregon, both areas that are structurally similar to the Northeast politically, where Gov. Kasich is performing well," Weaver said. Like Cruz's campaign, Kasich's campaign encouraged allied super PACs and other outside groups to "honor the commitments." — AP