President Donald Trump faces mounting challenges heading into tonight’s State of the Union address after the Supreme Court struck down his tariff policy, as public opinion sours on his immigration and economic agendas and amid a partial government shutdown. 

Some Democratic lawmakers are planning to boycott Trump's speech and attend an rally called "People's State of the Union" on the National Mall. Others are inviting guests to make political statements on their criticisms of the administration.

Scott is joined by the San Francisco Chronicle’s Washington D.C. correspondent Alexei Kossef for a preview of the address before Congress.

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