Portland advertising firm Wieden+Kennedy jumped into the most Portland possible trade Friday: the food cart game. The political food cart game.

The cart, called "Donald Trump's BS," started serving sandwiches at about 11 a.m. in Pioneer Courthouse Square.

BS stands for "baloney sandwiches."

"With 18-days to go and our fate in the hands of American voters," the agency said in a statement Friday, "a new food truck has arrived in the mecca of food cart culture to serve sandwiches to the people, with a healthy dose of factual information."

I love a great baloney sandwich as much as the next person, but Portland's newest food cart is the worst. #TrumpServesBS pic.twitter.com/wWWQY43l8d — Jeff Duncan (@dunkcfpd) October 21, 2016

The sandwiches, which are actual, real, free baloney sandwiches, are wrapped in gold paper and messages fact checking various statements that the Republican presidential nominee has made during the campaign.

The food cart is only temporary. It will appear again Saturday between 11 a.m. and 2 p.m. while supplies last.

If you can't make it down to Pioneer Courthouse Square, you can live vicariously through the many posts on Instagram and Twitter or just watch the ad on repeat while eating a homemade baloney sandwich.

-- Lizzy Acker

503-221-8052

lacker@oregonian.com, @lizzzyacker