In an age of social media and sound bites, advocacy groups in Cleveland have turned to the old-fashioned medium of billboards to display messages during the Republican National Convention, from the serious to the ridiculous and shocking.

Among them is an artist's fanciful rendering of Donald Trump about to kiss former rival Ted Cruz, a poke at a Republican Party platform that would limit gay rights, the sign's sponsor said.

"Love Trumps Hate. End Homophobia," reads the billboard featuring Trump and Cruz moving in for a lip-lock....

Six strategically placed signs around the city depict a group of women in a police-style lineup. The message, sponsored by the National Institute of Reproductive Health, which supports abortion rights, is intended to bring attention to recently passed state laws seeking to limit access to abortion....