As of December 7 there were 369 women running or planning to run for a House seat in 2018, according to Rutgers University's Center for American Women and Politics, which would be the most women House candidates ever. The number is subject to change, as the filing deadlines for most states are months away.
Data: Center for American Women and Politics; Potential candidate totals; Chart: Chris Canipe / Axios
One reason: Following President Trump's election, and particularly since the Women's March, women have been more "energized" and "driven to get involved," per the the New York Times. Another factor is the sexual harassment awakening that has taken the country by storm over the last several months, and involved the president as well as several male members of Congress.