Most states have a primary or caucus to determine how many delegates each candidate receives. But a few states, like North Dakota, Colorado and Wyoming, elect their delegates at state party meetings.

Cruz himself is slated to address state-level delegates in Casper today. Ed Buchanan, the state’s Cruz campaign chair, says volunteers spread across each of Wyoming’s 23 counties have been tracking the process since last fall…

Trump’s campaign, meanwhile, continues to struggle in states without a presidential preference vote. “Expectations are low here,” said Alan Cobb, a senior adviser to the Trump campaign on the ground in Casper. “These narrow party processes don’t favor our campaign.”

Former Alaska Gov. Sarah Palin was planning on coming to sway state delegates to back Trump-preferred delegates, but she has canceled her appearance.