In a recent interview with the New York Times, Vice President JD Vance denied that there was an “intense rivalry” between him and Secretary of State Marco Rubio. And yet, reports and speculations about tensions between them continue to emerge, with the Rubio camp allegedly spreading rumours that Vance was thinking about pulling out of the presidential campaign before it even startsIn response, perhaps, during the past two weeks, the vice president has stepped out of his routine public persona that usually avoids controversy to make bold statements critical of Israel. Rubio, on the other hand, has continued to hold the party line of unconditional support for Israel. While Vance has led efforts to negotiate a peace deal with Iran, which have rattled Israel, Rubio has spearheaded efforts to pressure the Lebanese government into an agreement on Israel’s terms.By becoming the face of Republican scepticism of Israel and clashing with his likely presidential election rival Rubio, Vance appears to be charting his own way to the presidency – one that distances the vice president from what increasingly seem to be unpopular foreign policy positions.Rubio, until recently, had been on the upswing, assigned ever-more important responsibilities by Trump. He has been a leading vo …