President Trump shared a letter from Republican members of the Pennsylvania Senate on Tuesday night urging US Senate leaders to delay the certification of the Electoral College votes. The certification process is scheduled to happen today during a joint session of Congress.

Fox News reports:

In the letter, the Pennsylvania senators accuse State Secretary Kathy Boockvar of “allowing for a proliferation of unsecured drop boxes in key Democratic areas” and “encouraging some counties” on the day before Nov. 3 to “notify party and candidate representatives of mail-in voters whose ballots contained disqualifying defects and allowing them to ‘cure’ those defects.”

Among the signers were President Pro Tempore Jake Corman, Republican Majority Leader Kim Ward, and state Sens. Judy Ward and Kristin Phillips-Hill.

Lawmakers also argue in the letter that mail-in ballots were counted three days after officials received them, ballots without postmarks were counted and signatures on ballots were not verified, as state law requires.

The letter concludes by asking McConnell and McCarthy, who on Sunday expressed support for a Republican-led challenge to the Electoral College’s election certification in a statement to The Hill, to “delay certification” as the State Senate pursues “election integrity” in the Commonwealth.

Multiple Republicans in the House of Representatives, as well as the Senate, have already released plans to objects to the Electoral College vote.