Approximately 850,000 ballots were cast across Harris, Montgomery, Fort Bend, Waller, Brazoria and Galveston counties, with the majority of Houston Metro voters supporting incumbent President Donald J. Trump and former Vice President Joe Biden as the respective Republican Party and Democrat Party presidential nominees, according to unofficial results posted overnight.

Approximately 360,326 votes, or about 94.02% of all participating Republican voters, were cast in support of Trump as the party nominee across the six Houston Metro counties, and another 179,292 ballots, or 38.7% of Democrat voters, chose Biden to represent the Democrats in the November presidential election.

Trump also dominated the largely uncontested Republican Party primary throughout Texas, recording 94.05% of all primary votes, while Biden is projected to receive the most Democrat primary votes, about 32.41%, according to Texas Secretary of State unofficial results. U.S. Sen. Sanders, I-Vermont, received 29.72% of all statewide votes and former New York City Mayor Michael Bloomberg earned 15.49%. U.S. Sen. Elizabeth Warren, D-Mass., placed fourth in the Democrat primary with 11.64% of the 1,653,588 votes counted as of 7 a.m. Central time March 4.

Here is a breakdown of preliminary results (7 a.m. March 4) of combined presidential primary votes across Harris, Montgomery, Fort Bend, Waller, Brazoria and Galveston counties:

U.S. Senate primary election

Updated 4:55p.m CST March 4

Democrat candidate Mary "MJ" Hegar and incumbent U.S. Sen. John Cornyn, R-Texas, were the big winners of the March 3 U.S. Senate primary election. Hegar garnered approximately 82,129 votes, or 20.07%, of all Democrat support across Harris, Montgomery, Fort Bend, Waller, Brazoria and Galveston counties, and Cornyn received 282,137 votes, or 76.92% of all Republican votes throughout the Houston Metro.

Hegar bested the other Democratic candidates statewide, with 22.28% of the nearly 1.85 million Democrat votes cast in Texas, resulting in a May 26 runoff against Texas State Sen. Royce West, D-Dallas, who has 14.52% of votes counted. Third-place candidate Cristina Tzintzun Ramirez received 12.76% of all votes, failing to make the runoff election, which occurs between the top-two candidates if no one receives more than 50% of the vote.

Cornyn received 76.31% of the 1.95 million Republican state primary votes. He will appear as the Republican nominee on the Nov. 3 general election ballot.

Here is a breakdown of preliminary results (7 a.m. March 4) of combined Senate primary votes across Harris, Montgomery, Fort Bend, Waller, Brazoria and Galveston counties: