City of Euless recently issued the following announcement.
Democratic and Republican Primary Runoffs
The runoff election for the Democratic and Republican primaries will be held July 14, 2020, following a postponement due to the Coronavirus pandemic. Early voting runs Monday, June 29, 2020 through Friday, July 10, 2020, and Euless voters may vote at the Euless Family Life Senior Center, 300 W. Midway Drive, Euless, or at any polling place in Tarrant County. A complete listing of polling places is available through Tarrant County.
Voters who voted in the Republican primary in March cannot cross parties and vote in the Democratic primary - and vice versa. But if you did not vote in the March primary you can still vote in the primary runoffs.
Sample ballots:
Original source can be found here.