 We're hearing rumblings this morning that Mayorkas may not allow her to attend. House Oversight Committee Chairman James Comer will officially issue the subpoena for Cheadle to testify at the hearing. Republicans say the Department of Homeland Security has not been forthcoming with lawmakers. The subpoena compels Cheadle to show up on Monday. Johnson says centralizing the investigation through the Speaker's office accelerates the probe. Lawmakers worry about transparency.