370 total delegates at stake for the Dems, 256 for the GOP. All contests in play for both parties:
Rhode Island: Open primaries — 21 Dem/ 17 GOP delegates at stake — polls close 9 pm ET.
Texas: Open primaries/caucuses for both parties — 193 Dem/ 137 GOP delegates at stake — polls close 9 pm ET (though most close at 8 pm ET).
Caucuses slated to begin 15 minutes after the polls close. Texas Democratic Party advertises results here.