Comment by rayiner
It’s basically impossible to engage in meaningful voter suppression in a country where election results can be cross-checked against high-quality polling.
“Gerrymandering” also has no effect on Presidential elections. And in 2024, Republicans won a larger share of the House popular vote than their share of House seats.
Voter suppression is the act of limiting the pool of voters. That includes putting large swaths of the population behind bars or flagged as non eligible to voting, putting barriers to voter registration etc.
It can never be 0 and every country will have a minimum requirement, but the degree to which it is done in the US is far ahead of most western country.
Gerrymandering has an effect on the criteria for voter eligibility, the voting rules in the state etc. It's not direct but who's in power has a sizeable effect on who will have an easier time voting.