For the July primary runoffs, and perhaps the November general election, ballots that are mailed instead of cast in-person could largely determine winners and losers — and change the way political campaigns are conducted in the coronavirus era. The fight against the coronavirus has delayed the runoffs, originally scheduled for May 26, until July 14. But it’s unclear if Texas will have turned the corner in the battle by then. Residents could still be wary of going to polling places for fear of coming in contact with infected people. Seniors have an easy solution. Texas law allows anyone older than 65 to vote by mail. Political analysts expect that group to be as important as ever, as many older residents are already accustomed to mailing their ballots. As of now, seniors, the sick and people with disabilities are the only non-absentee residents who can vote by mail. On Thursday, Keith Ingram, director of elections for the Texas secretary of state, sent out a memo reminding county elections officials that they could encourage voters suffering or recovering from an illness, be it COVID-19 or something else, to use a mail-in ballot.