My wife has been having an affair with two men for over a year and a half I have emails to prove it.Can I get a divorce with that prove

Where are you at ? Most states in the US do not need grounds any longer or any proof.

where are you at ? most states in the US do not need grounds any longer or any proof.

In Louisiana

As Fr_Chuck said, you don't need to prove anything
To get a divorce.

Is there a reason you want to have adultery brought up
Other than grounds for divorce.(which you don't need)

It is better for both of you if you can reach an agreement
That would make the divorce uncontested.
It is much less expensive and time consuming.

Bringing something like adultery up would probably cause
More trouble , take more time, and cost you a lot more money.
I'd say make the break as clean and fast as possible, then
Move on and don't look back.