[88] On his return to the United States at the end of 1953, Nixon increased the time he devoted to foreign relations.[89]
Biographer Irwin Gellman, who chronicled Nixon's congressional years, said of his vice presidency:

.mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 40px}.mw-parser-output .templatequote .templatequotecite{line-height:1.5em;text-align:left;padding-left:1.6em;margin-top:0}Eisenhower radically altered the role of his running mate by presenting him with critical assignments in both foreign and domestic affairs once he assumed his office. The vice president welcomed the president's initiatives and worked energetically to accomplish White House objectives. Because of the collaboration between these two leaders, Nixon deserves the title, "the first modern vice president".[90]

.mw-parser-output .tmulti .multiimageinner{display:flex;flex-direction:column}.mw-parser-output .tmulti .trow{display:flex;flex-direction:row;clear:left;flex-wrap:wrap;width:100%;box-sizing:border-box}.mw-parser-output .tmulti .tsingle{margin:1px;float:left}.mw-parser-output .tmulti .theader{clear:both;font-weight:bold;text-align:center;align-self:center;background-color:transparent;width:100%}.mw-parser-output .tmulti .thumbcaption{background-color:transparent}.mw-parser-output .tmulti .text-align-left{text-align:left}.mw-parser-output .tmulti .text-align-right{text-align:right}.mw-parser-output .tmulti .text-align-center{text-align:center}@media all and (max-width:720px){.mw-parser-output .tmulti .thumbinner{width:100%!important;box-sizing:border-box;max-width:none!important;align-items:center}.mw-parser-output .tmulti .trow{justify-content:center}.mw-parser-output .tmulti .tsingle{float:none!important;max-width:100%!important;box-sizing:border-box;text-align:center}.mw-parser-output .tmulti .tsingle .thumbcaption{text-align:left}.mw-parser-output .tmulti .trow>.thumbcaption{text-align:center}}Los Angeles TimesSan Francisco ChronicleAmerican newspaper covers of May 9, 1958, show student protests at the National University of San Marcos during Nixon's visit.
Despite intense campaigning by Nixon, who reprised his strong attacks on the Democrats, the Republicans lost control of both houses of Congress in the 1954 elections. These losses caused Nixon to contemplate leaving politics once he had served out his term.