ALBUQUERQUE, N.M. (AP) — Democrat Teresa Leger Fernandez has won a seat in Congress to succeed U.S. Rep. Ben Ray Luján and Democratic U.S. Rep. Debra Haaland was reelected, as the state sends its first all-female U.S. House delegation to Congress.

New Mexico’s most watched congressional race pitting Democratic U.S. Rep. Xochitl Torres Small against Republican challenger Yvette Herrell was too early to call as many votes in the conservative-leaning 2nd District remained uncounted.

Election workers in the sprawling district, particularly in Dona Ana County, were processing an unprecedented number of absentee ballots as polling locations saw steady turnout on Election Day. New Mexico voter participation shattered previous records with more than 890,000 ballots cast.

While Torres Small maintained a fundraising edge throughout the race, Herrell received a surge in donations during the third quarter. She raised more than $1 million — one of the biggest fundraising quarters for a Republican congressional candidate in state history.

New Republican registrations in the district also outpaced Democrats by more than double the margin of victory in the first contest between the two candidates in 2018.

Herrell this time made an effort to broaden her campaign beyond the region’s more conservative strongholds. In recent weeks, Trump and other big-name Republicans also campaigned virtually for Herrell.

Trump won the district by 10 points in 2016, and GOP voters are again energized during this presidential election cycle. Torres Small won the district in 2018 by a slim margin during a Democratic wave.

Torres Small dropped by some polling places Tuesday, including her alma mater Mayfield High School. She said she was energized, inspired and a little nervous.

“I know how important today is,” she told reporters.

Herrell spent part of Tuesday praying, thanking her supporters and calling voters throughout the district to ensure they were casting ballots as the race will be decided by turnout.

Regardless of who wins, New Mexico will send its first all-female U.S. House delegation to Congress. Women vied for all three seats.

The election also marked another milestone because in all of the U.S. House races, at least one Latina or one Native American woman was on the ballot, making for some of the most diverse political battles in the U.S.

In northern New Mexico, Leger Fernandez defeated Republican engineer Alexis Johnson in an open race. Leger Fernandez’s campaign was backed by a long list of advocacy groups for progressive causes and greater Latina representation in Congress.

Leger Fernandez becomes the first woman to hold the 3rd District seat since its creation in 1983. Registered Democrats outnumber Republicans nearly 2-1 in the district, which overlaps portions of the Navajo Nation and includes other Native American communities.

Leger Fernandez supports new investments in renewable energy and a transition toward a single-payer health care system. Johnson campaigned on an anti-abortion platform that emphasized limited government in the heavily Roman Catholic district.

Surrounded by her family, Leger Fernandez told supporters watching online that she considered each vote in support of her campaign a statement of trust. She vowed Tuesday night to also earn the trust of those who did not vote for her, saying she would listen and strategize with them.

In the district that includes Albuquerque, Haaland, one of the first Native American women to serve in Congress, won reelection against Republican challenger Michelle Garcia Holmes. Haaland, a former chairwoman of the state Democratic Party, campaigned as a vocal critic of the Trump administration.

Garcia Holmes, a former police detective, embraced Trump’s law-and-order agenda. She visited Tuesday with voters in a majority Hispanic district in Albuquerque and said New Mexicans are tired of the poverty and dismal educational outcomes that persist in the Democrat-led state.

In southern New Mexico, Herrell embraced Trump’s border wall strategy and has promoted her pro-petroleum philosophy in her bid to unseat Torres Small. She also tried to draw parallels between her opponent and House Speaker Nancy Pelosi, with ads focused on Torres Small’s voting record and ties to gun control activists flooding the airwaves during the campaign’s final days.

Torres Small attempted to portray herself as a moderate who opposed her party’s line on certain issues, like banning fracking and limiting oil and gas development on federal land.

Torres Small recently tried to distance herself from comments made by Democratic presidential candidate Joe Biden — who has waffled on oil and gas development, saying early on that he opposed fracking only to be corrected by his campaign and then later suggested he would ban new drilling permits on federal land.

The issue of energy development is important in New Mexico, which is home to part of one of the world’s richest oil and natural gas basins. Revenue from the industry underpins the state budget and supports tens of thousands of jobs.