Neither Walsh nor Weld will be running in Kentucky, where candidates are only required to pay $1,000 and fill out a statement of candidacy form. Walsh failed to get on the ballot in Louisiana, where it costs just $1,125. Weld won’t be running in Oklahoma, where a presidential aspirant only needs to cut a $5,000 check.

The two are also MIA in some of the country’s most delegate-rich battlegrounds. While Walsh, a former congressman, didn’t file in his home state of Illinois, Weld’s attempt to get on the Ohio ballot was rejected by election officials who said he didn’t meet the state’s requirements.

The Walsh and Weld campaigns say they’ve faced fierce resistance from pro-Trump state GOP organizations which are working to keep them from competing. They have been particularly frustrated by the Georgia and Minnesota Republican parties, which submitted only Trump’s name for the primary ballot.