Full Story | TrePhonos Story at 22:40

On Tuesday’s Houston Matters: More than 63,000 in-person ballots were cast in Harris County on Monday, a reportedly record-setting turnout for the first day of early voting in the midterm election. With mail-in ballots, 115,601 votes have been cast in Harris County so far. A local political scientist weighs in on voter turnout so far.

Also this hour: This year’s flu vaccine should be about 20 percent effective, according to tests from Rice University bioengineer Dr. Michael Deem, who joins us to discuss how the vaccine works and who should get it.

And we learn about an art project that’s bringing pay phones back.