I demand an investigation.

[Sogo]

WHO THE HE11 PUT A SANDBAG IN BIDEN'S PATH?????????????

[niyad]

1. Good question

[MutantAndProud]

2. Pence's mother snuck them in.

Don’t ask me how I know.

[TheProle]

3. JFC

Sandbags are often used to stabilize and support Production sets. I put this on the account of Secret Service agents who should have better guided him/through any obstacles.

[drray23]

4. it likely was not intentional

More problematic is the fact whomever is in charge of scoping out the area missed it.

[marble falls]

5. This one ...

She's taking a victory lap. The devil standing beside her made her do it.

[LetMyPeopleVote]

6. Gotta love a president who can poke a little fun at their own expense!

Link to tweet

[former9thward]

7. No one.

It was helping hold up the teleprompter. Look at the video. It was off to the side.