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Story highlights

Cruz to focus on Indiana while Kasich will devote his efforts to Oregon and New Mexico

Strategy is aimed at blocking Trump from gaining the 1,237 delegates necessary to claim to GOP nomination

CNN —  

Ted Cruz and John Kasich are joining forces in a last-ditch effort to deny Donald Trump the Republican presidential nomination.

Within minutes of each other, the pair issued statements late Sunday saying they will divide their efforts in upcoming contests with Cruz focusing on Indiana and Kasich devoting his efforts to Oregon and New Mexico. The strategy – something the two campaigns have been working on for weeks – is aimed at blocking Trump from gaining the 1,237 delegates necessary to claim to GOP nomination this summer.

The extraordinary moves reflect the national strength Trump has shown and the inability of Republicans who oppose the New York billionaire to come together to stop him. Dividing up some of the remaining primary states by putting forward one strong alternative to Trump in each could be enough to take away delegates and curb Trump’s run to the nomination.

“This is a nationwide campaign and we’re making a decision where to focus our time, energy and resources,” Cruz told conservative radio host Laura Ingraham on Monday. “We are now focused very, very heavily on the state of Indiana. It is significant that John Kasich is pulling out of Indiana and allowing us to go directly head to head with Donald Trump.”

Kasich said Monday despite the agreement, he still wants Indiana voters to support him.

“They ought to vote for me,” he said during a gaggle with reporters at a Philadelphia diner.

“I’m not campaigning in Indiana and he’s not campaigning in these other states, that’s all. It’s not a big deal,” Kasich said.

Trump is the only candidate who can realistically get a first-ballot victory – there’s no mathematical path for Cruz or Kasich to clinch the nomination heading into the convention. The billionaire is poised for a strong performance Tuesday, when Republicans in Maryland, Pennsylvania, Delaware, Connecticut and Rhode Island head to the polls.

RELATED: CNN delegate estimate

Cruz campaign manager Jeff Roe said in a statement the Texas senator will focus on the May 3 Indiana primary. He called Trump at top of the GOP ticket “a sure disaster.”

He added: “To ensure that we nominate a Republican who can unify the Republican Party and win in November, our campaign will focus its time and resources in Indiana and in turn clear the path for Gov. Kasich to compete in Oregon and New Mexico.”

Kasich’s chief strategist, John Weaver, said in a separate statement: “Due to the fact that the Indiana primary is winner-take-all statewide and by congressional district, keeping Trump from winning a plurality in Indiana is critical to keeping him under 1,237 bound delegates before Cleveland. We are very comfortable with our delegate position in Indiana already, and given the current dynamics of the primary there, we will shift our campaign’s resources West and give the Cruz campaign a clear path in Indiana.”

READ: Resetting Red and Blue in the Rust Belt

Trump blasted the arrangement on Twitter.

“Wow, just announced that Lyin’ Ted and Kasich are going to collude in order to keep me from getting the Republican nomination. DESPERATION!” Trump wrote Sunday night.

Trump social media director Dan Scavino also blasted the deal on Twitter. “Two losing politicians-mathematically eliminated from receiving the nomination-trying something NEW! They will FAIL!” he tweeted.

Talks started after Ohio

Kasich’s camp has been working for weeks to get Cruz on board with a divide-and-conquer strategy against Trump.

Initial overtures started about a week after Kasich won the Ohio primary but were initially met with silence, according to a senior Kasich official. But talks – primarily between Weaver and Roe – started in earnest during the following weeks, as both campaigns saw a need to work something out, even before Trump’s big win in the New York primary, the source said.

The two top strategists met to hash out the details during last week’s Republican National Committee meeting in Hollywood, Florida, according to a source. In fact, even as Cruz publicly called Kasich a “spoiler” and the two campaigns were literally a few rooms apart holding private meetings to woo individual and state delegates, the advisers were negotiating their plan. The deal wasn’t finalized until Sunday, when they hammered out the last of the specifics.

READ: Trump campaign holds organizing call with Pennsylvania delegate candidates

Sunday’s move is what many in the GOP have urged on for a while – a combined “Never Trump” strategy. Both campaigns have each sought to be the one that denies Trump a first-ballot win at the Republican convention. Each has offered their own rationales for why GOP delegates would then turn to them as the party standard-bearer.

But these strategies by Kasich and Cruz have fallen short as Trump has proved a nearly unstoppable force in the Republican