How many vice presidents have gone on to become US president?
15
2
2
2
2
2
2
2
3
2
3
2
3
1
2
4
3
1
2
4
3
1
2
4
3
1
2
4
3
1
5
2
4
0
3
1
5
2
4
3
1
0
5
2
4
3
1
5
2
0
4
3
1
5
2
4
0
3
1
5
2
4
7
3
1
0
5
2
4
7
3
1
5
0
4
7
3
6
1
5
4
7
0
3
6
1
5
4
7
3
6
1
0
8
5
4
7
3
6
1
8
5
0
4
7
3
6
1
8
5
13
4
7
0
3
6
1
8
5
13
4
7
6
1
0
8
5
13
11
4
9
7
6
1
8
5
13
11
4
9
7
6
8
5
13
11
9
7
6
8
5
13
11
9
7
6
8
5
12
13
11
9
7
6
8
5
12
13
11
10
9
7
6
8
12
13
11
10
9
7
6
8
12
13
11
10
9
7
6
8
12
13
11
10
9
7
6
8
12
13
11