Coming up today in the D.C. area:

Same-sex marriage: The Supreme Court will hear oral arguments over the right of same-sex couples to marry. Some supporters are planning an interfaith prayer and rally while opponents will hold a “March for Marriage.”

School takeover: Prince George’s County Executive Rushern L. Baker III (D) will hold a telephone town hall at 7:30 p.m. to discuss his plan.

Gun control: Some Maryland moms are planning a rally in Annapolis to advocate for a ban on assault weapons and other gun control legislation.

Cold spell: The snow and slush may be behind us, but lower-than-normal temperatures continue.