I'm writing letters to TX-06. When should I mail?

Please feel free to mail your letters as soon as you write them, and aim to get them all in the mail on or by April 15th. Early in-person voting begins on April 19th, and we anticipate that many voters will opt to vote early as they did in November, so by mailing on or before April 15th, our letters will land in mailboxes with plenty of time for voters in Texas' 6th Congressional District to make a plan to vote and encourage their friends to vote too.