UPDATE 2-Colombian president urges dialog ahead of planned Wednesday marches Reuters 5/4/2021 (Recasts with announcement from Duque about national dialog) By Oliver Griffin and Luis Jaime Acosta BOGOTA, May 4 (Reuters) - Colombian President Ivan Duque said on Tuesday the government is ready for national dialog after days of protests led to over 20 deaths and international concern about excessive use of force by police. The protests, set to continue on Wednesday, were originally called in opposition to the government's now-canceled tax reform plan but have become a broad cry for action against poverty and what demonstrators and advocacy groups say is police violence.