In a surprising turn of events, Donald Trump's former political opponents took center stage at the Republican National Convention, voicing their unwavering support for the former president. The second night of the convention saw Nikki Haley, Ron DeSantis, Ted Cruz, and Marco Rubio, all vying for the presidential nomination in the past, pledge their allegiance to Trump and emphasize party unity.

Nikki Haley, who had previously taken more than two months to endorse Trump after her White House bid, faced a skeptical crowd as she kicked off the endorsements. However, she quickly won them over with her strong statement: "Donald Trump has my strong endorsement, period."

Following her lead, Florida Governor Ron DeSantis launched a scathing attack on President Joe Biden, highlighting the need for a strong Republican voice in the face of the current administration's policies. Meanwhile, Senator Ted Cruz, who had experienced a contentious relationship with Trump in the past, urged convention attendees to "vote their conscience" in a nod to his infamous 2016 clash with Trump supporters.

Perhaps one of the most surprising endorsements came from Senator Marco Rubio, who had been a fierce critic of Trump during the 2016 election. In his keynote address, Rubio focused on a previous assassination attempt on Trump and a tragic incident that occurred during one of his rallies, speaking to Trump's resilience and determination in the face of adversity.

While the Republican National Convention unfolded, new research revealed the profound impact of melting ice on Earth's spin. Two recent studies indicate that climate change is causing significant shifts in the planet's core. Scientists warn that if carbon emissions continue at extreme levels, these shifts could eventually rival the influence of tidal forces caused by the moon, altering our concept of time and posing further challenges to environmental stability.

In a separate development, President Joe Biden conveyed his frustration with ongoing discussions regarding his candidacy during private calls with Democrats. Biden, feeling exasperated at times, emphasized that the conversation about his future candidacy should come to an end. An aide reportedly passed him a note which read, "Stay positive, you are sounding defensive."

As the news cycle continues to evolve, it remains to be seen how these political endorsements and shifting environmental dynamics will shape future conversations and policies. The Republican National Convention has certainly set the stage for a united front in support of Donald Trump, while climate change research serves as a reminder of the urgent need for environmental action.

This has been the Morning Rundown, curated by Elizabeth Robinson. If you enjoyed today's newsletter, please feel free to share it with your family and friends. They can sign up here to stay informed on the latest news and insights.