Economy Twitter CEO to testify before US House panel Updated : August 25, 2018 12:22 PM IST Dorsey is also expected to testify about election security along with Facebook COO Sheryl Sandberg and a representative from Google before the Senate Intelligence Committee. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.