U.S. Sen. Pat Toomey is blaming "people outside of our state" for his offices being inundated with phone calls and emails regarding President Donald Trump's cabinet nominees.

Toomey took to Facebook Monday to urge Pennsylvanians to contact him through his website following a "high volume of calls and emails" to his offices. The calls have been coming as the U.S. Senate votes on the confirmation of Betsy DeVos, Trump's education secretary nominee, on Tuesday.

My D.C. and PA offices are receiving a high volume of calls and emails from people outside of our state weighing in on... Posted by Senator Pat Toomey on Monday, February 6, 2017

Many have complained -- including those that attended the "Tuesdays with Toomey" protests -- that they've been unsuccessfully trying to reach the senator about DeVos. Calls to Toomey's offices on Monday went straight to voicemail. There was no room on the Harrisburg office's voicemail to receive any messages.

By late January, 1 million people have emailed and 40,000 people have called their senators opposing DeVos, according to the National Education Association, the nation's largest labor union.

The DeVos confirmation is coming down to a tight vote in the Senate. Vice President Mike Pence is set to be the tie-breaking vote on the confirmation.

Critics -- both Democrats and Republicans -- have been vocal against Trump's education secretary pick. During her confirmation hearing, DeVos said she never attended a K-12 public school, sent her kids to public schools or taught in a public school.

Elizabeth Ayers, of Dillsburg, said during the Harrisburg "Tuesdays with Toomey" protest that she had been calling and emailing Toomey's offices in an attempt to talk to her representative. However, her phone calls and emails have gone unanswered.

"This was an opportunity to make a public statement that his constituents are trying to reach him," said Ayers, who was holding a giant styrofoam phone. "There are so many issues that so many people are concerned about, after just a week [of Trump in office]."