Escalating tensions on Capitol Hill erupted into a contentious floor fight in the House of Representatives on Tuesday afternoon, as House Speaker Nancy Pelosi spoke in favor of a proposed resolution condemning "racist" comments by President Trump -- even as Republican leaders stood steadfast behind the president. As Pelosi's remarks turned personal, Georgia Republican Rep. Doug Collins rose to challenge her and demand that her words be "taken down." The extraordinary rebuke, the first of its kind by a member of Congress and a speaker of the House in decades, theoretically could result in Pelosi being barred from speaking on...