Hundreds of Black Lives Matter protesters hold their phones aloft on Monday, July 20, 2020, in Portland, Ore. Federal officers' actions at protests in Oregon's largest city, hailed by President Donald Trump but done without local consent, are raising the prospect of a constitutional crisis – one that could escalate as weeks of demonstrations find renewed focus in clashes with camouflaged, unidentified agents outside Portland's U.S. courthouse. (AP Photo/Noah Berger)
