May I cynically say that these schedules appear to be those of politicians wishing to avoid their constituents:

Senator Chuck Grassley has two events scheduled this week in Iowa:

Tuesday, April 18, 2017
Keokuk County Town Meeting
2:30 p.m. to 3:30 p.m.
Keokuk County Courthouse
Courtroom
101 South Main Street
Sigourney

Thursday, April 20, 2017
Sac County Town Meeting
10:00 a.m. to 11:00 a.m.
Iowa State Bank
Meeting Room
500 Audubon Street
Sac City

Senator Joni Ernst has two events scheduled this week:

Tuesday, April 18, 2017
Sac County Town Meeting
1:00 PM CT
Wall Lake Community Center
108 Boyer Street
Wall Lake, IA

Friday, April 21, 2017
Guthrie County Town Meeting
7:30 AM CT
Panora Veterans Auditorium
115 West Main Street
Panora, IA