Rep. Eric Swalwell, D-Calif., announced his run for the White House in April, but by the summer, soon after the first set of Democratic debates and as fundraising numbers for the second quarter were being released, he dropped out of the race.
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He is the first of the more than 20 Democratic nominees to drop out.
"I thank my supporters and friends, my staff, and my family for making this journey possible. I'll never forget the people I met and lessons I learned while travelling around our great nation -- especially in the communities most affected by gun violence," Swalwell said on Monday.
"It's official," Swalwell said on the show. "Boy did it feel good to say that."
The next day, he appeared on ABC's "Good Morning America" and Chief Anchor George Stephanopoulos asked Swalwell if he was concerned about backlash in key voting states over his gun control stance.
The 38-year-old former prosecutor is a vocal advocate for stopping gun violence. During his campaign run, gun control was at the top of his agenda and the day after his announcement, Swalwell was holding a Town Hall to End Gun Violence in Sunrise, Florida, with Marjory Stoneman Douglas High School students and families. The Parkland, Florida, school was the scene of a mass shooting. Seventeen people were killed in the 2018 massacre.
In June, at the first Democratic debates in Miami -- just 45 minutes away from Marjory Stoneman Douglas High School -- Swalwell honored Parkland victims by wearing an orange ribbon. The ribbon was made by the father of 14-year-old Jamie Guttenberg, who was one of 17 people killed in the February 2018 shooting. Guttenberg's father, Fred, joined Swalwell at the debate as his guest.
A week ahead of Swalwell announcing his run for the White House, he shared a 47-second voicemail message on Twitter that threatened his life.
"Eric Swalwell ... here's a little ditty for ya… Pop pop popbop pop pop, thirty round clip. You're all gonna drop," the caller said.
In that same tweet, Swalwell wrote, "I'm not afraid of this guy. I'm not afraid of the NRA. I'm not afraid. No fear. #EndGunViolence"
Swalwell concluded his campaign run but he did mention that although he is no longer running for president, he will still be serving the people who need him in the community.
"I will take those lessons back to Congress, serving my friends and neighbors in California's 15th District while using my seats on the House Intelligence and Judiciary committees to make our nation safer and uphold the rule of law for all Americans."
Here's everything you need to know:
Name: Eric Swalwell
Date of Birth: Nov. 16, 1980
Hometown: Sac City, Iowa
Swalwell was originally born in Sac City, Iowa but grew up in the East Bay area of California. His father is a retired police officer and his mother is an administrative assistant. Swalwell is the oldest of four boys and became the first person in his family to attend college, having received a Division I soccer scholarship according to the biography on his U.S. House of Representatives page.
He graduated from University of Maryland in College Park, Maryland in 2003 and from the University of Maryland School of Law in Baltimore in 2006.
What he does now:
In 2012, he defeated Rep. Pete Stark, who had served in Congress for 40 years. It was the first election cycle under California's top-two primary system, where the top two finishers, regardless of party, advance to the general election, according to FiveThirtyEight. Swalwell continues to represent the 15th Congressional District and currently serves on the House Permanent Select Committee on Intelligence, where he is chairman of the Intelligence Modernization and Readiness Subcommittee.
In 2015, he founded the "Future Forum," a group of 50 young House Democratic members who are focused on addressing issues for and giving opportunities to millennial Americans.
What he used to do:
After earning a law degree in Maryland, he served as a prosecutor in the Alameda County District Attorney's Office in California for seven years, starting in 2006.
What you may not know about him:
Since early 2017, Swalwell has visited Iowa, the first state to hold a presidential nominating contest, at least 16 times, according to FiveThirtyEight. His visits there appear to be paying off and according to a March 2019 poll, 29 percent of likely Democratic Iowa caucus-goers know enough about Swalwell to form an opinion of him. However, in that same poll, he would only receive 1% of the vote.
ABC News' Abby Cruz contributed to this report.