How many states voted for both Donald Trump in 2016 and Joe Biden in 2020?
5
5
2
3
5
4
2
3
5
4
2
3
5
4
0
2
3
5
4
1
2
3
5
0
4
1
2
3
5
0
4
1
2
3
5
4
1
0
2
3
5
4
1
2
3
5
0
6
4
1
2
3
5
6
0
4
1
2
3
5
6
4
1
0
2
3
7
5
6
4
1
2
3
7
5
0
6
4
8
1
2
3
7
5
6
4
8
1
2
3
7
5
6
4
8
1
2
3
7
5
6
4
8
1
2
3
7
5
6
9
4
8
1
2
3
7
5
6
9
11
4
10
8
1
2
3
7
5
6
9
11
4
10
8
1
2
3
7
6
12
9
11
4
10
128
8
1
7
13
6
12
9
11
10
8
1
7
128
13
6
12
9
11
10
8
1
7
2 states
13
6
12
9
128
11
10
8
1
7
13
6
12
9
11
10
128
5 states
8
4 states
7
13
6
12
9
11
10
8
7
128
13
6
12