Allies of Sen. John McCainJohn Sidney McCainOvernight Defense: States pull National Guard troops over family separation policy | Senators question pick for Afghan commander | US leaves UN Human Rights Council 13 GOP senators ask administration to pause separation of immigrant families McCain, Coons: Trump should withdraw controversial refugee nominee MORE (R-Ariz.) are using recent reports that President Obama will address immigration reform this year as an opportunity to raise funds for the Arizona Republican.

Jason LeVecke, co-chair of McCain's re-election finance committee, penned a letter to hundreds of Houston business leaders urging them to attend a fundraiser for McCain as a way to show their support for comprehensive immigration reform, the Houston Chronicle reports.