President Trump tells ABC News' David Muir alleged voter fraud probe has 'a lot to look into'

Trump sat down for an exclusive interview with ABC News' David Muir.

The president later added, “When you look at the people that are registered: dead, illegal and two states, and some cases maybe three states -- we have a lot to look into.”

Trump said he’s calling for the investigation because “I want the voting process to be legitimate.”

Just weeks after the election, Trump claimed “serious” voter fraud occurred in three states and maintained he would have “won the popular vote if you deduct the millions of people who voted illegally.”

On Tuesday, the National Association of Secretaries of State released a new statement disputing Trump’s claims that millions illegally cast votes during last year’s election.

"We are not aware of any evidence that supports the voter fraud claims made by President Trump, but we are open to learning more about the Administration’s concerns,” the National Association of Secretaries of State said in a statement. “In the lead up to the November 2016 election, secretaries of state expressed their confidence in the systemic integrity of our election process as a bipartisan group, and they stand behind that statement today.”

During an attempt to stop a recount in Michigan last year, Trump’s own legal team wrote, “All available evidence suggests that the 2016 general election was not tainted by fraud or mistake.”