As host of ABC’s This Week after a four-month run:

Tapper used his time at the helm to make some tweaks to the traditional Sunday show format: He had his colleagues at ABC News “live-Tweet” the show for those following along on Twitter (“Meet the Press” now started doing this, too) and he partnered up with the fact-checking group Politifact to follow-up on claims made by guests on the program.

Tapper was a sharp moderator. He embraced the web, asked tough, intelligent questions, and brought some fresh voices into the Sunday mix, like Reihan Salam. Former CNN reporter Christiane Amanpour will start hosting the program on August 1.