Lissu has been holding political rallies across the country since returning from exile in January.
In June 2016, Magufuli prohibited elected officials from holding rallies outside their constituencies. The former president argued that election season was over and rallies were a waste of time and a distraction from development.
This soon became a blanket ban for political gatherings as the police turned down opposition requests to organise rallies. In some cases, even internal party meetings were disrupted with leaders and their followers harassed and arrested.
But Magufuli himself kept holding rallies and crisscrossing the country by road with his entourage, making numerous impromptu stops to address locals and make off-script decisions.
Hassan, his successor, has made moves to reconcile with the opposition, including lifting the ban. But she was also seen as continuing some of the draconian policies of her predecessor – including a seven-month imprisonment of Chadema leader Freeman Mbowe on charges of “terrorism financing”.