By Ed Sterling

Incumbent President Donald J. Trump, who received 94% of the vote in the Lone Star State’s Republican primary election, and former Vice President Joe Biden, who received 34.5 percent of the vote in the Democratic primary, were their parties’ top vote-getters on March 3, Super Tuesday.

Biden’s closest rival was Vermont Sen. Bernie Sanders, who received 30% of the Democratic vote. Sanders was followed by former New York Mayor Michael Bloomberg, 14.4%, and Massachuset...