The tweet is part of a promoted Twitter campaign. It was first posted at 3:14 Thursday afternoon and was still up at least as late as early Friday afternoon.
Several commenters on the tweet attempted to alert the Clinton campaign of the error, apparently to no avail:
The tweet links to the Clinton campaign website where users are urged to "Say you're with Hillary" and enter an email address to "Stand with Hillary in the fight to overturn Citizens United and get secret, unaccountable money out of our politics." The Planned Parenthood reference is nowhere to be found.
Note: A version of this post first appeared at The Weekly Standard.