Today, another in our series of weekly conversations with candidates who are on the ballot in the April 26 primary. We continue our focus this week on the race for the United States Senate. Congressman Chris Van Hollen has represented Maryland’s 8th congressional district since 2003. He is running in the Democratic primary to be the party's standard bearer in the November election to replace Sen. Barbara Mikulski, who is retiring early next year. Tom talks with Rep. Van Hollen about the issues that will face a new Senate and a new President in 2017, and about his vision for Maryland and the country.