amy: we will speak to politico reporter ian ward and historian nancy isenberg, author of "white trash: the 400-year untold history of class in america." all that and more coming up. welcome to democracy now!, democracynow.org, this is war, peace, and the presidency. breaking with convention. i'm amy goodman. president biden has tested positive for covid, and canceled a campaign speech wednesday evening as he headed back to delaware to self-isolate. the white house said biden has mild symptoms and is being treated with the anti-viral drug paxlovid. biden was set to address the unidos u.s. conference in las vegas to appeal to latinx voters. earlier in the day, an unmasked biden was seen greeting supporters. just hours before news of the president's covid diagnosis went public, biden made headlines over comments during an interview with bet journalist ed gordon. >> is there anything you would look to, you personally, not other pungent's, not family members, that you would look to to say if you see that i will reevaluate. >> some medical condition that emerges. doctors say you have this p