Carson ahead in Iowa and other headlines

Carson tops Trump in new Iowa poll. (Quinnipiac University)

Donald Trump on raising rates, running mates and Joe Biden’s decision. (USA Today)

How Joe Biden decided not to run for president. (AP, WSJ, Yahoo! News, Politico, Washington Post)

Clinton aims to assert foreign-policy authority in Benghazi hearing. (Bloomberg Politics)

7th St. Louis church attacked by arsonist. (KSDK)

White House to sell new fighter jets to Pakistan in a bid to bolster partnership. (New York Times)

Teacher killed in attack on Swedish school. (AP)

What are you reading this morning? Let us know in the comments, please.

Rachel Maddow Show Morning Maddow

Carson ahead in Iowa and other headlines