Trump Calls Lindsey Graham 'Beyond Rehabilitation' Trump ripped into Lindsey Graham after Graham said he wouldn't support him

 -- Donald Trump ripped into Sen. Lindsey Graham after the outspoken senator said he wouldn't support the likely Republican nominee.

In a written statement, Trump alluded to Graham's own presidential bid, which he ended in December: "While I will unify the party, Lindsey Graham has shown himself to be beyond rehabilitation. And like the voters who rejected him, so will I!"

Trump also appeared to blame Graham's campaign failure for ISIS' gains in the Middle East.

"Judging by the incompetent way he ran his campaign, it is easy to see why his military strategies have failed so badly --- we can’t even beat ISIS!" he said.

Earlier today Graham, one of Trump’s most vocal Republican critics, announced that he would not support the presumptive GOP nominee in a general election.

Saying he also refused to vote for Hillary Clinton, Graham said, “I also cannot in good conscience support Donald Trump because I do not believe he is a reliable Republican conservative nor has he displayed the judgment and temperament to serve as Commander in Chief.”

The senior senator also said in the statement that he would not attend the Republican National Convention in Cleveland this summer.

Graham had previously, albeit begrudgingly, endorsed Sen. Ted Cruz as the only viable alternative to Trump.

But he had made his distaste with both candidates clear, saying repeatedly that choosing between Cruz and Trump was like “being shot or poisoned. What does it matter?”

Graham also said in his statement that he would focus on helping Republicans win other offices throughout the country.