The outcome of several competitive House races in Southern California and along the U.S.-Mexico border could significantly influence which party gains control of the U.S. House of Representatives. In California, these races are particularly crucial, with both parties investing heavily, as the state holds the largest number of House seats in the nation. Former Presidents Bill Clinton and Donald Trump have campaigned there, highlighting the importance of these contests. Despite Democrats' numerical advantage in registered voters, Republicans maintain strongholds in certain districts, creating a battleground scenario. In Texas, key border districts such as the 34th and 15th are up for grabs, with incumbents and challengers fiercely competing for control. National and local issues are impacting voter decisions, making these races pivotal in determining House control in the upcoming elections.