Hillary Clinton will campaign in Arizona today, a state that hasn’t voted for a Democratic presidential candidate since 1996. But there are signs the campaign may re-thinking its bold strategy.

The Clinton campaign also plans to return to Detroit, Michigan, typically a safe state for Democrats in a presidential election. The last time Michigan went for a Republican was in 1988, choosing George H. W. Bush over Michael Dukakis.

Clinton will campaign in Detroit on Friday, as well as hosting a rally Pittsburgh, Pennsylvania.

A Michigan poll released on Tuesday shows Clinton earning 50 percent support while Trump has 43 percent.

Trump held two rallies in Michigan on Monday, as his advisers insisted the state showed it was competitive.

“Michigan is up for grabs,” Donald Trump’s campaign manager Kellyanne Conway told CNN. “We like what we hear on the ground there.”

“All the geniuses that work for me they say, ‘Oh, you’re even in Michigan,'” Trump said during his rally. “So I say, ‘Let’s go and win it.’”