By Limin Zhou OTTAWA, Canada—Police smashed truck windows and pushed back against protesters on Feb. 19 as law enforcement continues to close in on the main site of the protest in downtown Ottawa. Ottawa police said around 1 p.m. on Feb. 19 that 47 people had been arrested and 38 vehicles towed. A heavy police presence remains in downtown Ottawa, a day after law enforcement escalated operations against protesters opposed to COVID-19 mandates in order to clear demonstrations around the area of Canada’s Parliament Buildings. Police have cleared many trucks and vehicles from…