One reason he isn't ruling out voting in person.

There's a chance I could.

Cook says his biggest decision isn't who to vote for it's overcoming the regret that comes with the alternative.

So I guess it's better to vote than to say I just did nothing.

1）rule out doing sth 这是接动名词短语结构吧？rule out 后不能接不定式吧？

2） it's overcoming...这里it指代什么？ 又为什么使用了主动语态和现在进行时呢？

3） 请分析 than to say I just did nothing. than后接了不定式，这里是than (it would be if I were) to say I just did nothing 省略结构吗？