Gallup.The new high shows an increase of 10 percent since the Supreme Court ruled on marriage equality in 2015. It’s an upward trend, Gallup notes, that’s been happening for a quarter of a century.When Gallup first asked respondents if they supported a legal recognition of “gay and lesbian” marriages in 1996, only 26 percent were in support.In 2011, Gallup reported for the first time that a majority of respondents supported marriage equality.This year, a majority of respondents — at 55 percent — who identified as Republicans supported same-sex marriage for the first time, according to Gallup.More than 80 percent of Democrats support marriage equality, which hasn’t shifted in several years.