New Delhi, Aug. 12 -- Ashley Biden, daughter of former President Joe Biden, has filed for divorce from her husband Dr. Howard Krein. The 44-year-old submitted legal papers on Monday in Philadelphia court, ending their 13-year marriage . Right after filing, Ashley posted an Instagram story showing her walking in a park and giving a thumbs-up.The photo had Beyonce's song "Freedom" playing in the background . She also shared a quote about new beginnings, saying: "New life, new beginnings means new boundaries" along with Lauryn Hill's song "Freedom Time" . The couple had no children together, and details about why they split remain private because Philadelphia keeps divorce records confidential.Ashley and Howard met back in 2010 through her l...