Saturday on PBS News Weekend, smoke from raging Canadian wildfires drifts into the U.S. and triggers air quality warnings across the upper Midwest, a look at how lawmakers across the country are trying to rein in citizen-led ballot initiatives and we follow a group of rehabilitated seals making their way back into the sea off the coast of Rhode Island. PBS News is supported by - https://www.pbs.org/newshour/about/funders