The war of words between Donald Trump and Democratic Gov. Wes Moore of Maryland escalated Sunday with the president threatening to send National Guard troops to Baltimore to attempt to reduce crime, and the first-term governor suggesting Trump was peddling outdated racist tropes he referred to as “blissful ignorance” to score political points.

The president also threatened to rethink the federal funding set to aid in replacing the collapsed Francis Scott Key Bridge.

President Trump on Sunday threatened to expand his military deployments to more Democratic-led cities, responding to an offer by Maryland’s governor to join him in a tour of Baltimore by saying he might instead “send in the ‘troops.