Republican candidate Donald Trump is set for a historic second term as US president after defeating Democratic Vice President Kamala Harris in the race for the White House. US networks declared Trump the victor on Wednesday after projecting crucial wins for him in hard-fought battleground states including Pennsylvania and Wisconsin, earning him an unassailable lead in the Electoral College. Harris called Trump to concede and later gave a concession speech in Washington after a crushing night for the Democrats, who lost control of the Senate and are unlikely to take back the House of Representa…