Howard County Exec Ball opts not to run in the 3rd Congressional District race. Who is running to follow John Sarbanes?

As soon as U.S. Rep. John Sarbanes announced in late October that he won’t seek reelection, cellphones in the political world lit up with texts and calls: Who might run for his seat? Sarbanes is a Democrat serving his ninth term representing the state’s 3rd Congressional District. In its current form, it encompasses all of Howard County, a small bit of Carroll County and a large swath of northern and central Anne Arundel County.