Democratic presidential candidate Julin Castro ended his campaign on Thursday, The New York Times reported .

Castro, the former mayor of San Antonio and secretary of Housing and Urban Development under then-President Barack Obama , would have been the first Latino president, had the voters rallied behind him. He was the first Texas Democrat to run for president since 1976.

In a video released by the campaign, Castro thanked his supporters and said, Ive determined that it simply isnt our time. The nearly four-minute video showed clips of Castros campaign, including him speaking out against police violence and the crisis at the southern border.

Throughout his campaign, Castro lagged behind other Democratic primary candidates in the polls and in campaign funds , telling supporters on Twitter that he needed to raise $800,000 by the end of October or his campaign would be silenced for good. He made a similar threat in an email to supporters back in September. Apparently, this time he meant it.

Castros campaign has struggled to climb the polls since he joined the race, and he failed to qualify for the last two Democratic debates in November and December.

After Sen. Kamala Harris (D-Calif.) dropped out of the race on Dec. 3, Castro criticized the lack of diversity that would be on the stage of the December Democratic primary debate. (He failed to make the polling numbers he needed to qualify for that debate.)

What were staring at is a DNC debate stage with no people of color on it, Castro said in a filmed statement . That does not reflect the diversity of our party or our country. We need to do better than that.

Castro was considered for 2016 Democratic nominee Hillary Clintons running mate but didnt get the spot. This time around, he decided to run for president himself.

Castro entered the race on Jan. 12 and ran on a platform of People First. He laid out a plan for education , but he focused primarily on law enforcement with progressive plans for policing and immigration .

He won praise for being the first to commit to a comprehensive immigration reform platform while other candidates shied away . As a descendant of Mexican immigrants, Castro hoped to ease the road to citizenship for others coming to the United States. All undocumented immigrants, except for those with serious criminal records, would be able to get on a path to citizenship, Castro told Mother Jones in May.