Washington (CNN) Secretary of state nominee Mike Pompeo now has the support of three Democratic senators, after two lawmakers said Monday they'd back the CIA director to be the nation's next top diplomat.

Democratic Sen. Joe Manchin tweeted that he will support Pompeo in his confirmation vote, increasing his chances of being confirmed by the chamber.

"After meeting with Mike Pompeo, discussing his foreign policy perspectives, & considering his distinguished time as CIA Director & his exemplary career in public service, I will vote to confirm Mike Pompeo to be our next Secretary of State," the West Virginia senator tweeted.

After meeting with Mike Pompeo, discussing his foreign policy perspectives, & considering his distinguished time as CIA Director & his exemplary career in public service, I will vote to confirm Mike Pompeo to be our next Secretary of State. — Senator Joe Manchin (@Sen_JoeManchin) April 23, 2018

Later on Monday, Democratic Sen. Joe Donnelly of Indiana also said he supports the CIA director to be secretary of state.

"When I met with Director Pompeo, we had a productive conversation about the complex security challenges we face, including the dangerous threat posed by North Korea's nuclear missile program," he said in the statement. "We need a secretary of state who will give the President an honest assessment on critical issues, including Russia, Syria, and the defeat of ISIS. I believe Director Pompeo is capable of advancing US interests and leading the State Department, and I will support his nomination."