The last time someone released a campaign commercial attacking John Kasich was April 2. The last time a major super PAC spent money against Kasich was March 11. Despite Kasich’s reluctance to drop out of the Republican primary, Donald Trump and Ted Cruz apparently don’t feel much of a need to attack Kasich.

Kasich campaign ads often try to make the case that he’s the Republican with the best chance to beat Hillary Clinton, citing general election polls where he beats Clinton but Cruz loses by a few points and Trump loses in a landslide. So far, Republican primary voters have not been moved by that argument.