TargetSmart, a Democratic political data firm, analyzed local election officials’ registration data against their voter file and found a surge of Democratic and unaffiliated voter registrations in June, amid the large Black Lives Matter protests across the country.

“Despite a full or partial lockdown in large swaths of the country for much of the month, voter registration began to rebound as people took to the streets to protest,” the firm said in its analysis.

In the first half of June, 1.1 million voters registered. By comparison, 1.5 million voters registered in the entire month of June 2016. Not all states have reported the entire month of June’s registration data, hence the partial national data.