The news from House Republican Chairmen Rodney Frelinghuysen Rodney Procter FrelinghuysenBottom line Republican lobbying firms riding high despite uncertainty of 2020 race Ex-Rep. Frelinghuysen joins law and lobby firm MORE and Trey Gowdy Harold (Trey) Watson GowdySunday shows preview: Election integrity dominates as Nov. 3 nears Tim Scott invokes Breonna Taylor, George Floyd in Trump convention speech Sunday shows preview: Republicans gear up for national convention, USPS debate continues in Washington MORE this week is just the latest in a string of similar announcements from GOP lawmakers — and I’d venture to guess the mass exodus of Republican Members from Congress isn’t over yet.

But however long the list of GOP retirements ultimately grows, the increasing number of congressional seats currently held by Republicans that will now be open this year are already radically reshaping the 2018 congressional map in favor of Democrats — and, more specifically, in favor of the Democratic women candidates who are now well-positioned to win back the majority in the U.S. House of Representatives by flipping many of these same seats.

EMILY’s List has already backed several pro-choice Democratic women running in these open seats (and counting) where the Republican incumbent has announced they’re retiring — and we’re busy recruiting and working with women in dozens more.

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To give just a few examples, California pediatrician Mai Khanh Tran — who first came to the U.S. as a nine-year-old refugee from Vietnam and later worked her way through school working as a janitor and lab research assistant, among other jobs — is running to flip the state’s 39th District, which is currently held by Republican Rep. Ed Royce Edward (Ed) Randall RoyceThe 'extraordinary rendition' of a US Presidential Medal of Freedom recipient, 'Hotel Rwanda' hero Gil Cisneros to face Young Kim in rematch of 2018 House race in California The most expensive congressional races of the last decade MORE and where Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE won by more than eight points in 2016.

In Washington state, Kim Schrier — another pediatrician who is a strong defender of the Affordable Care Act because of her personal experience having a pre-existing condition — is running for the seat now held by Republican Rep. Dave Reichert David (Dave) George ReichertWashington Rep. Kim Schrier wins primary Mail ballot surge places Postal Service under spotlight Bottom Line MORE, who abandoned plans to run for re-election just weeks after Schrier entered the race.

Sara Jacobs is running in soon-to-be former Republican Rep. Darrell Issa Darrell Edward IssaDCCC reserves new ad buys in competitive districts, adds new members to 'Red to Blue' program Wife of former Rep. Duncan Hunter sentenced to 8 months of home confinement Harris endorses Democrat in tight California House race MORE’s district, where Hillary Clinton defeated Donald Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE by seven points and Issa barely eked out his most recent re-election. Jacobs is a former State Department advisor and founder of a nonprofit to expand access to the internet for vulnerable communities and is strongly positioned to flip the seat for Democrats.

Then, of course, there was one of the very first Republicans to announce her retirement, Rep. Ileana Ros-Lehtinen Ileana Carmen Ros-Lehtinen'Trump show' convention sparks little interest on K Street Shalala to face Salazar in Florida rematch TechNet hires Hispanic communications director MORE. When Ros-Lehtinen decided in April that she would not fight to hold on to her seat — one of the bluest seats still held by a Republican House member — it was an early signal of GOP weakness and a great opportunity for us to flip a seat from red to blue. EMILY’s List is supporting former federal judge nominee Mary Barzee Flores, a woman whose toughness was on full display in one of her early campaign videos, which described her personal experience with sexism and harassment.

To win back the House, Democrats ultimately need to flip at least 24 seats.

Incidentally, there are 23 seats in districts where Hillary Clinton won that currently have a Republican serving as their representative — many of which are now open this cycle.

And even in the traditionally “safe” Republican districts where House Republicans have announced they’ll step down, pro-choice Democratic women are strongly positioned to flip these seats.

Take for example Mikie Sherrill — a retired U.S. Navy helicopter pilot and former prosecutor in the U.S. Attorney's office — who is running for the now-open seat vacated by Frelinghuysen that marginally voted for Donald Trump in the 2016 presidential race.

It’s no exaggeration to say this moment is truly unprecedented in our history — not just because of the many opportunities it presents for wins by Democratic women candidates, but also because many of these vacancies come as a direct result of Democratic women voters holding House Republicans accountable for their votes on health care and taxes, and demonstrating their power at the ballot box where women candidates have already won historic victories and flipped seats in Virginia, Georgia, and special elections across the country.

The growing number of House Republicans giving up on defending their party’s agenda in battleground districts makes it clear: The writing is on the wall for the GOP. Democratic women — as voters and as candidates — are strongly positioned to take back the House in 2018.

Stephanie Schriock is president of EMILY's List, the nation’s largest resource for women in politics. The organization recruits and trains candidates and turns out women voters. EMILY's List has helped elect 116 women to the House, 23 to the Senate, 12 governors and over 800 to state and local office.