Republicans are eager to push through nomination to US Supreme Court before elections, while Democrats argue move would endanger Obamacare, abortion rights

Supreme Court nomination event eyed as source of infections; along with president, 2 key Republican senators, former Trump adviser, and 3 members of press corps found positive

Senator Tim Kaine says 4 Republicans are willing to support bill requiring Trump to seek authority from Congress if military hostilities with Iran last more than 30 days

Pelosi says move prompted by 'insufficient' briefing that shows administration has no 'coherent strategy'; Republican Sen. Mike Lee calls it 'worst' briefing he's received