While Texas voters were fairly evenly divided, Robstown leaders and voters were solidly behind New York Sen. Hillary Clinton for the Democratic presidential nomination.
Clinton won 51 percent of the votes cast in Texas in the March 4 Democratic Primary, while Illinois Sen. Barack Obama won 47 percent.
But in Nueces County, Clinton won about 66 percent of the Democratic presidential votes, while Obama won only about 33 percent.
The numbers leaned much more heavily toward Clinton in Robstown, where Clinton trounced Obama at every polling site.
Clinton received 2,774 of the 3,346 votes cast in Robstown, or almost 83 percent.
Obama received 519 of the 3,346 votes cast in Robstown, or 15.5 percent.
Despite the close statewide victory, Clinton netted only four more primary delegates than Obama because of the proportional system Texas Democrats use to allocate delegates by senate districts.
Clinton won 65 of the primary's 126 delegates, compared to Obama's 61.
On the other side of the ledger, Obama won handily in caucuses held throughout Texas March 4. He was projected to win 38 of the 67 caucus delegates at stake, to Clinton's 29, netting nine more caucus delegates than Clinton.
"Based on a large sample of caucus results in all 31 state senate districts, Senator Obama is projected to post a substantial victory in the Texas caucus," said Obama Texas State Director Adrian Saenz. "This means that Senator Obama will win at least five more pledged delegates from Texas than Senator Clinton."
According to The Associated Press, Obama's lead in pledged and superdelegates was 1,564 to Clinton's 1,463 after the March 4 contests. Among pledged delegates only, Obama led by 140, according to the AP.
Only 12 contests, with 611 pledged delegates, remained in the presidential race after the March 4 races in Texas, Ohio, Rhode Island and Vermont.
Obama won big in Wyoming Saturday, picking up two more delegates, and he was expected to win big again Tuesday in Mississippi. The next presidential contest is April 22 in Pennsylvania.
Obama is likely to end the primaries and caucuses with a lead in pledged delegates. But neither candidate will likely be able to reach the 2,025 delegates needed to secure the Democratic nomination, which means the Democratic presidential race will likely be settled by the roughly 800 superdelegates.
New contests may be held in Florida and Michigan. The Democratic Party stripped those two states of all their delegates after the states moved their primaries before Feb. 5. But re-voting in Michigan and Florida is unlikely to give either candidate the needed delegates to clinch the nomination.
"By fighting the (Texas) primary to a near-draw and earning a resounding victory in the caucus, the people of Texas have moved Barack Obama one step closer to claiming the Democratic nomination for president," Saenz said.
Clinton gained the endorsements of several key political leaders from Robstown, including U.S. Rep. Solomon P. Ortiz, state Rep. Abel Herrero, and Robstown Mayor Rodrigo Ramon Jr.
She also received a symbolic key to the city from Ramon during her Feb. 13 campaign stop in Robstown and thanked Ortiz, Herrero, Ramon, state Rep. Solomon Ortiz Jr., former state Sen. Carlos Truan and former county judges Terry Shamsie and Richard Borchard at the outset of her Robstown speech.
Obama enjoyed little public support from Nueces County political leaders, with the most notable exception being state Rep. Juan Garcia, Obama's former college roommate.
When Obama visited Corpus Christi on Feb. 22, he opened by thanking elected officials that supported his campaign, but Garcia was the only local official named by Obama.
Obama had no public support from Robstown leaders, although the Illinois senator received the endorsement of Texas-based Mexican American Democrats, the oldest Latino group within the Texas Democratic Party.
Obama won the Hispanic vote in Iowa, Virginia, Connecticut, Washington and Illinois, but not in other key states with large Hispanic populations such as Arizona and California.
Both campaigns heavily courted South Texas voters.
Clinton apparently did much better with Texas Hispanics given her large win in Nueces County, and predominately Hispanic Robstown in particular.
At Precinct 13 balloting at Salazar Elementary School in Robstown, Clinton won 86 percent of the votes to Obama's 12 percent.
At Precinct 28 at St. Anthony Catholic Church in Robstown, Clinton won 64 percent, Obama had 26 percent and former contender John Edwards won 10 percent.
At Precinct 35 at Lotspeich Elementary School, Clinton won 85 percent of the votes to Obama's 14 percent.
At Precinct 37 at the Johnny S. Calderon County Building, Clinton won 79 percent of the votes to Obama's 19 percent.
At Precinct 54 at Ortiz Intermediate School, Clinton won 83 percent of the votes to Obama's 16 percent.
At Precinct 55 at Hattie Martin Elementary School, Clinton won 82 percent of the votes to Obama's 17 percent.
At Precinct 104 at Lotspeich Elementary School, Clinton won 84 percent of the votes to Obama's 15 percent.
At Precinct 105 at San Pedro Elementary School, Clinton won 83 percent of the votes to Obama's 15 percent.
At Precinct 108 at the Nueces County Airport, Clinton won 83 percent of the votes to Obama's 15 percent.
Ortiz said prior to the March 4 Texas primaries and caucuses that Robstown would be critical to Clinton's success in Nueces County.
"It's a known fact that when we have county-wide elections and a close race, it is Robstown that put the (winning) candidate across the finish line," Ortiz said. "Robstown is a key element for candidates to win.
"(Clinton) is well known is South Texas. She is not a stranger coming to Texas looking for a vote. I don't think she will ever forget coming to Robstown and the way she was received by the people."
News Editor Tim Olmeda contributed to this report.