To reclaim control of the Senate, Democrats need to retain all the Senate seats they have and flip four more in the 2026 midterm elections. Shrai Popat, the Guardian's US politics reporter, explains which are the key races to watch in November.

Recent polls show that American voters across the political spectrum are deeply dissatisfied with the Trump administration, and the upcoming midterm elections will provide them an opportunity to express how they feel. The Guardian's reporter Fabiola Cineas breaks down the four key issues that will drive voters to the polls

Journalist Amal Khalil was killed in April in what colleagues described as a sustained attack by Israeli forces. Rescuers attempted to dig her out of the rubble of a building that had been targeted by Israeli forces, who had also prevented them from providing life-saving assistance.

Beirut-based Guardian correspondent Will Christou explains how investigations by Human Rights Watch (HRW), Amnesty International and Legal Agenda show that Israel deliberately and directly attacked Khalil and her colleague Zeinab Faraj, with apparent knowledge that they were journalists. The organisations called for the attacks to be investigated as war crimes, while HRW called for states to halt arms sales to Israel and put targeted sanctions on Israeli officials responsible for ongoing crimes.

Deliberately attacking journalists is a war crime. Israel has killed at least 15 journalists in Lebanon and 210 in Gaza since 2023, according to the UN human rights office.

Israel said it 'regrets any harm caused to journalists', and that they were killed 'as part of a series of events' during which two Hezbollah military operatives were killed

• Israeli strike that killed journalist in Lebanon was war crime, say rights groups

Brazil will head to the polls on 4 October for the first vote in its presidential race. The incumbent, Luiz Inácio Lula da Silva, is neck-and-neck with Flávio Bolsonaro, the son of the former president Jair Bolsonaro, who is in prison for plotting a military coup. There are fears and accusations that the US is interfering in the election, and these follow similar allegations in a string of elections across Latin America won by Donald Trump-backed candidates in what is being called 'the orange wave'.

The Guardian's Latin America correspondent, Tom Phillips, explains the tactics Trump and his administration have been using in recent months and what impact another Bolsonaro government could have on the region, and the world

Houthi militants have made a lightning advance along the Red Sea coast, capturing strategically important territory in Yemen.

Hundreds of civilians have been killed and more than 100,000 people have been forced to flee their homes.

The Guardian's Oliver Holmes explains why this conflict has world governments on edge

French company Puy du Fou is planning a £600m history-themed park in Oxfordshire. A Guardian investigation has found the company continued working with associates of Konstantin Malofeyev, a pro-Kremlin oligarch under sanctions, on plans for a theme park in Russian-occupied Crimea for longer than it had previously disclosed, and later explored projects in Iran and China.

Business reporter Rob Davies explains his findings, including documents that raise questions about whether Puy du Fou’s activities tested the limits of EU sanctions imposed after Russia’s 2014 annexation of Crimea.

He also examines the far-right politics associated with Puy du Fou’s founder, Philippe de Villiers, and asks whether the company is a suitable choice to tell Britain’s national story

• Kremlin connections: the Russia links to a £600m UK theme park