Probably dumb question: why didn't the House Democrats subpoena Bolton to testify?

[democrattotheend]

Why didn't they do that during the House impeachment hearings instead of fighting to do it now in the Senate?

[Kablooie]

1. Probably because it would have been appealed up to the SCOTUS.

Which could mean they might not get a decision until sometime next year.

[Progressive Law]

2. Bolton's attorney threatened to fight a subpoena in court, thereby delaying the actual impeachment.

https://www.cnn.com/2019/11/07/politics/john-bolton-no-subpoena-court-battle/index.html

[uponit7771]

3. Because the US judicial system sucks when it comes to these issues

[murielm99]

4. Their right to subpoena

is already in the Constitution. Why should they have to go to court over it?

[mitch96]

5. I think it's b/c there is no "fist" in their glove

How many subpoenas have not been answered... They just say no and nothing happens. Now if some of these people who don't answer a subpoenas get fined and sent to jail shit will start happening..
My question is can congress impeach tRump again and call Bolton to testify?
m

[MiniMe]

6. Bolton threatened to sue them if they subpoened him

He would only cooperate with the Senate