the united states illegally. we ve just crossed the border into mexico to hear what this executive order means for people on this side of the border. james: the cbs evening news starts now. and just hours at 12:01 a.m. eastern time, president biden s aggressive new border restrictions take effect. i m james brown in for norah o donnell. the impact of this executive action will be immediately, soon, u.s. immigration officials will be authorized to deport large numbers of migrants without processing their asylum claims. the restrictions will stay in effect until illegal crossings dipped below 1500 migrants a day, and they will be triggered again if crossings spike. we have team coverage from the border to the white house, and that s where we start, with cbs s nancy cordes. nancy, this is a dramatic election-year move. what does this mean? reporter: j.b., what this means is that starting tomorrow, most migrants who cross the border illegally will not be allowed to se
short of record territory in phoenix topping 110 degrees and well into the 90s for denver and albuquerque, even up to 140 degrees in el paso. now it is not surprising that this could part of the country s hot. what is surprising it is this hot, this early in the season, that has prompted excessive heat warnings and heat advisories that extend from california and arizona into nevada and then eastward into texas, and there is a fingerprint of climate change associated with this. a metric called the climate shift index quantifies how much more likely and extreme weather event like this heat wave is due to the influence of climate change, 2-5 times more likely for this particular event, this kind of heat this early in the season essentially cooks the vegetation and increases the wildfire threat, but j.b., there is good news, the heat wave is expected to break as we head into the weekend. james: paul heggen with a hot report, thank you so much. not to a cbs news exclusive, with a jewish-u