However, the first minister said she did not describe Thursday's vote as a "de facto referendum" on whether there should be another referendum on Scottish independence, instead saying "it's an election".
Should Ms Sturgeon win a majority, Peter Smith said he would expect the first minister to push for another referendum within this parliamentary term and once the coronavirus pandemic has passed.
"It's not a defacto referendum, it's an election", First Minister Nicola Sturgeon tells ITV News
Ms Sturgeon's comments come as a poll for STV suggests there is a chance the SNP could win that outright majority on Thursday.