The Senate Intelligence Committee is looking at the presidential campaign of the Green Party’s Jill Stein for potential “collusion with the Russians,” a sign that the panel’s probe is far from over, even as allegations swirl that the House Intelligence Committee’s investigation is racing to a close. Sen. Richard Burr (R-N.C.) told reporters Monday that the Senate Intelligence Committee has “two other campaigns that we’re just starting on,” in addition to the panel’s ongoing probe of alleged ties between the Trump administration and Kremlin officials. One of those he identified as Stein’s; Burr has indicated previously that the committee is...