When it comes to responding to the nation's gun violence epidemic, Congress is finally starting to take some action. At least in the U.S. House of Representatives, which, in February, passed legislation to expand background checks for the sale of firearms.

The question now is what is the Republican-controlled Senate going to do.

Today, we speak with Democratic Connecticut U.S. Sen. Chris Murphy, who's made gun safety one of his signature issues. 

What do you want to ask the senator on that and the multitude of pressing issues currently before Congress? 

• What's happening with efforts to get the full Mueller report released?
• Are there too many Democrats running for president?
• Should NCAA student athletes be paid?

We take your calls.

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