Incumbent Republican Tom Cole, who has represented Oklahoma’s 4th district since 2003, faces limited primary opposition on June 16 and enters the November 3 general election with substantial cash reserves and strong institutional support. The district’s partisan voting index favors Republicans by double digits, consistent with longstanding nonpartisan ratings classifying the seat as solid or safe Republican. Traders price the Republican nominee at 93.5 percent because no recent polling, fundraising shifts, or candidate developments indicate a competitive general-election challenge from the Democratic field, which remains in its own low-profile primary. An upset would require an unexpected primary defeat for Cole followed by a significant swing in voter turnout or national political environment.