U.S House members who might run for U.S Senate in 2016

[136or142]

None have entered yet
Per politics1.com

1.Karen Bass, D, California
2.Xavier Becerra, D California
3.Raul Ruiz, D, California
4.Loretta Sanchez, D, California
5.Jackie Speier, D, California
6.Ed Royce, R, California
7.Mike Coffman, R, Colorado
8.Scott Tipton, R, Colorado
9.Ted Deutch, D, Florida
10.Gwen Graham, D, Florida
11.Debbie Wasserman Schultz, D, Florida
12.Cheri Bustos, D Illinois
13.Tammy Duckworth, D, Illinois
14.Bill Foster, D, Illinois
15.Robin Kelly, D, Illinois
16.Annie Kuster, D, New Hampshire
17.Tim Ryan, D, Ohio
18.Dave Reichert, R, Washington
19.Gwen Moore, D, Wisconsin

[136or142]

The owner of politics1.com is a former Democratic political operative named Ron Gunzburger who lives in Florida, so he may know something.  He has Patrick Murphy as a potential candidate in the 2018 governor race.

[136or142]

20. Marlin Stutzman, R Indiana

As a primary oppponent?  Dan Coats has already said he's planning to run again.  Of course he could change his mind.