The virus is a powerful reminder that,  politics aside, we should supply materials to the world. 

politics aside 是个插入成分，看作状语也可。意为“撇开政治因素不谈”。

aide (用于名词后)， 除......以外；撇开......不考虑。

aside adv.（谈话中）撇开…不谈 
You use aside to indicate that you are leaving it out of your discussion, and that you are about to talk about something else.