How many people have ever served for more than 45 years in the US Senate?
5
2
2
2
2
2
2
1
2
1
2
1
2
1
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
4
2
1
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
1
5
3
4
0
1
5
3
4
1
0
5
3
4
1
5
0
3
4
1
5
3
4
0
5
7
3
6
4
0
5
7
3
6
4
5
0
7
3
6
4
5
7
3
6
4
0
5
7
6
4
5
7
No
8
6
4
5
7
No
8
6
4
5
7
No
8
6
4
5
7
No
8
6
4
5
7
No
8
6
9
13
5
7
No
8
6
9
13
7
No
8
6
9
13
7
No
8
6
9
13
7
No
8
6
9
13
7
No
8
6
9
13
7
No
8
6
9
13
7
No
8
6
9
13
11
One
7
No
8
6
10
9
13
11
One
7
No
8
6
10
9
13
265