Kamala Harris launched a blistering attack on Donald Trump and his "extremist" Republicans as she addressed teachers Thursday, seeking to rally a key part of the Democratic coalition behind her bid to take on the billionaire for the presidency.
The country's first female vice president -- who is seeking to make history again in November -- has enjoyed a groundswell of support from labor groups, ethnic minorities and her own party since announcing her 11th-hour candidacy to replace President Joe Biden as the candidate.