Billionaire Dallas Mavericks owner and entrepreneur Mark Cuban joined ‘The Brian Kilmeade Show’ to discuss VP Kamala Harris’ flip-flops on the border and immigration and why he backs her tax policy and economic proposals. Billionaire Dallas Mavericks owner and entrepreneur Mark Cuban joined ‘The Brian Kilmeade Show’ to discuss VP Kamala Harris’ flip-flops on the border and immigration and why he backs her tax policy and economic proposals.