Why four Republicans didn't vote at all on impeachment

President Trump was impeached for a second time on Wednesday with the help of 10 House Republicans, while 197 other Republicans voted against impeaching him for “incitement of insurrection.”

But another four House Republicans did not vote at all: Texas Rep. Kay Granger, Maryland Rep. Andy Harris, North Carolina Rep. Greg Murphy, and Florida Rep. Daniel Webster. Three of them have said they opposed impeachment despite not being in Washington, D.C., to cast a vote.