First Minister Michelle O'Neill says her decision not to travel to Washington DC for the annual festivities is one of principle.

Their exchange Friday came after Mills and Trump traded statements over the past 24 hours over his push to bar transgender athletes and evolved into an unusual breach of the typically courteous interactions that public officials,

President Donald Trump met with New York Gov. Kathy Hochul for more than an hour on Friday to discuss a controversial Manhattan toll program known as congestion pricing. The Democratic governor also spoke with the president about immigration and energy policies during the Oval Office meeting,

By the end of the heated exchange, the Democratic governor threatened to sue the president over the issue. "We'll see you in court," Mills said. Start the day smarter. Get all the news you need in your inbox each morning.