President Barack Obama took aim Tuesday at Republican presidential nominee Donald Trump, urging voters in the key battleground state of Ohio to avoid being “bamboozled.”

Obama traveled to Columbus just seven days before voters will head to the polls, with The Rothenberg & Gonzales Political Report/Roll Call listing the presidential race in Ohio as a Tossup. Trump and his Democratic foe Hillary Clinton are making an eleventh-hour push to fire up their bases and win over undecided voters in a list of swing states, including Ohio.

“Donald Trump is uniquely unqualified to be president,” Obama said. “He is temperamentally unfit to be commander in chief.”

The president urged the audience to consider that many Republican lawmakers have said similar things before “they decided it was politically convenient” to voice their support for Trump. He accused GOP officials of “doing backflips” on whether they truly support Trump’s candidacy.

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