Migrants with a child arrive on the Greek island of Lesbos after crossing the Aegean Sea from Turkey. Photo: Aris Messinis/AFP/Getty Images

Greece's 3rd-largest island, Lesbos, is overflowing with refugees as the "rate of arrivals hit the highest level since a European Union crackdown on migration three years ago," AP reports.

Why it matters: "Lesbos and other Greek islands facing Turkey’s mainland were used as a physical barrier to Europe’s mainland," per AP. The Moira refugee camp on Lesbos houses 12,000 people in a space meant for 3,000. Nearly 7,000 are stuck on the hillside outside the refugee camp as winter approaches — a dangerous place to be, as Lesbos is a "magnet for migrant traffickers," per AP.

The big picture: The recent uptick in refugees comes as Turkish President Recep Tayyip Erdoğan has threatened to allow more refugees to travel to Europe through Turkey if other nations don't provide financial support to house them, reports the New York Times.

  • Erdoğan also wants other countries to refrain from blocking his plans "to extend Turkish influence in northern Syria," where the Kurdish people live, per the Times.
  • Yes, but: Many Syrians have found it easier to settle in Turkey than to go elsewhere in Europe.

Go deeper: Axios' deep dive on the global refugee crisis

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Florida smashes single-day record for new coronavirus cases

Data: Covid Tracking Project; Chart: Axios Visuals

Florida reported 15,299 confirmed coronavirus cases on Sunday — a new single-day record for any state, according to its health department.

The big picture: The figure shatters both Florida's previous record of 11,458 new cases and the single-state record of 11,694 set by California last week, according to AP. It also surpasses New York's daily peak of 11,571 new cases in April, and comes just a day after Disney World reopened in Orlando.

Pelosi: Trump is "messing with the health of our children" with push to open schools

House Speaker Nancy Pelosi said on CNN's "State of the Union" Sunday that Education Secretary Betsy DeVos' aggressive push to fully reopen schools this fall is "malfeasance and dereliction of duty," accusing the Trump administration of "messing with the health of our children."

Why it matters: Trump has demanded that schools reopen as part of his efforts to juice the economy by allowing parents to return to work, despite caution from health officials that little is known about how the virus impacts children.

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Betsy DeVos: Schools that don't reopen shouldn't get federal funds

Education Secretary Betsy DeVos told "Fox News Sunday" that public schools that don't reopen in the fall should not get federal funds, and that the money should be redirected to families who can use it to find another option for their children.

Why it matters: The Trump administration is engaged in a full-court press to reopen schools this fall, despite warnings from some public health officials that the coronavirus outbreak is out of control in many states and that it will be difficult for many schools to reopen safely.