ToplineTesla stock roared again Monday, extending its robust post-election gains after its leader Elon Musk hitched his wagon to President-elect Donald Trump’s efforts to secure a second presidential term, simultaneously making Musk a much richer man as one analyst hinted at the prospect of Musk’s close relationship with Trump resulting in friendlier policy.Elon Musk, flanked by former first lady Melania Trump, appear at a rally last month for Donald ... [+] Trump.The Washington Post via Getty Images Key Fa ...