White House defends Trump's tweets about TV host

Trump went after two MSNBC on-air personalities today.

"I think that the president is pushing back against people who attack him day after day after day," she said.

She continued, "The president has been attacked mercilessly on personal accounts by people on that program. The only person I see a war on is this president and every person that works for him."

Responding to criticism that Trump's tweets sullied the presidency, Sanders responded that he respects the dignity of his position "every day in the decisions that he's making and the focus and priorities of his agenda."

She added that the American people "elected a fighter ... They knew what they were getting."

"As first lady has stated publicly ... when her husband gets attacked, he will punch back 10 times harder," Grisham said.

ABC News' Jordyn Phelps contributed to this report.