Caitlyn Jenner looks elegant in slinky navy one-shoulder gown as she attends Donald Trump's inauguration ball

She previously publicly declared that she was 'here to help' Republicans understand LBGTQ issues.

And Caitlyn Jenner stayed true to her word as she attended the Liberty Ball for Donald Trump's presidential inauguration in Washington DC on Friday.

The 67-year-old transgender star looked effortlessly elegant in a slinky floor-length navy gown that featured a ruffled one-shoulder neckline.