The Republican Party opens its national convention in Dallas on Wednesday, marking the first time the event has been held during a midterm election year. Billed by Donald Trump as a "truly historic event," the gathering will forgo formal party business in favour of a rally-style push to energise the MAGA base ahead of November's congressional elections. With Trump's approval ratings under pressure following the Iran conflict and rising fuel prices, Republicans face a tougher-than-usual fight to retain control of Congress, including in traditionally safe seats such as Texas's Senate race. Al Jazeera's Heidi Zhou-Castro reports from Washington, DC. Subscribe to our channel: bit.ly/AJSubscribe Follow us on X: X.com/AJEnglish Find us on Facebook: facebook.com/aljazeera Check our website: aljazeera.com Check out our Instagram page: instagram.com/aljazeeraenglish Download AJE Mobile App: aje.news/AJEMobile #USPolitics #Republican...