It is a well-worn cliché that one should not throw stones from glass houses. Unfortunately, this apparently is one that Sen. Cory Booker (D-N.J.) has yet to internalize: an omission which may well have led to the most hilariously pathetic series of news cycles any senator can endure.

Last week, in what can only be described as historically shameless grandstanding, Booker broke with the entire history of Senate precedent and testified against the nomination of his former colleague Alabama Sen. Jeff Sessions Jefferson (Jeff) Beauregard SessionsTrump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status White House officials voted by show of hands on 2018 family separations: report MORE for attorney general. Displaying the approximate self-awareness of an infant still struggling to grasp object permanence, Booker denounced the man he had previously praised for his work on civil rights as callous and indifferent to justice. Apparently, Booker’s appreciation of the accomplishments of others extends only as far as his presidential ambitions can permit.

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And, indeed, judged purely from a cynical, power-seeking perspective, Booker’s stunt was a success: he energized the left-wing base of the Democratic Party, who are presently craving a hero with a plausible presidential future. Booker could, indeed, have walked away from the whole thing an early frontrunner for the 2020 presidential race.

But, unfortunately for Booker, newly minted heroes sometimes tread on fragile ground -- terrain that is easily swept out from under them when they cross more established lions of the left. Booker managed this in just under a week, antagonizing both Sen. Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE (D-Vt.), and its great 1/32nd Native American hope Elizabeth Warren Elizabeth WarrenWarren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon No new taxes for the ultra rich — fix bad tax policy instead MORE, not to mention the legions of activists behind them who immediately abandoned any goodwill he had previously earned.

How did he manage this? By publicly taking a stand against a Senate amendment permitting importation of pharmaceuticals, a practice which would likely lower the absurd prices that presently exist in the United States.

The bill, which was sponsored by Sen. Amy Klobuchar Amy KlobucharEPA delivers win for ethanol industry angered by waivers to refiners It's time for newspapers to stop endorsing presidential candidates Biden marks anniversary of the Violence Against Women Act, knocks Trump and McConnell MORE (D-Minn.) and Sanders himself, was notable in that despite its far left origins, it attracted the support of such right-wing firebrands as Sen. Mike Lee Michael (Mike) Shumway LeeMcConnell shores up GOP support for coronavirus package McConnell tries to unify GOP Davis: The Hall of Shame for GOP senators who remain silent on Donald Trump MORE (R-Utah) and the much-despised Sen. Ted Cruz Rafael (Ted) Edward CruzLoeffler calls for hearing in wake of Netflix's 'Cuties' Health care in the crosshairs with new Trump Supreme Court list 'Parks and Rec' cast members hosting special reunion to raise money for Wisconsin Democrats MORE (R-Texas). It also would have fit right in with President-elect Trump’s publicly expressed determination to force drug prices down.

In this, Trump, Lee, and Cruz were staying consistent with previous Republican administrations’ desire to attack high drug prices: in particular, their stances echoed President George H. W. Bush’s support for the 340B drug discount program, which requires pharmaceutical companies receiving Medicaid and Medicare Part B funding to offer their drugs to vulnerable populations at lower prices. And good for them, because measures that take aim at the shameless monopoly-style pricing regime of Big Pharma are part and parcel of the populist conservatism that defines today’s Republican Party.

So why, with grassroots leaders of both parties supporting it, would Booker vote it down? The answer, of course, is money. The pharmaceutical industry is Booker’s eighth biggest donor, which may explain why his concerns over the bill so obviously echoed that industry’s own talking points.

Booker is, of course, entitled to act on behalf of corporate America, but to take this step so soon after denouncing Sessions for inattention to justice, particularly for minorities, takes a special level of gall. Black Americans especially tend to be poorer than their counterparts, and thus can least afford the abusive pricing that pharma favors. Booker, who was formerly mayor of the heavily ghettoized Newark, should be well-aware of the effect that poverty and poor medical care can have on a population. And, similarly, he should be unwilling to tolerate it.

The Left is rightly denouncing this (in a rare moment of consistency and moral clarity). Meanwhile, conservatives seeking proof that mainstream Democrats (of which Booker is an exemplary figure) have learned nothing from their November trouncing should look no further. In fact, Booker’s cynical gestures of solidarity with minority populations, and his immediate self-refuting actions in the face of financial support, are eerily similar to the actions of none other than Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE, pharma’s most expensive mistake of 2016.

Like Hillary, Booker’s problem is clear. Just like his friend T-Bone, Booker’s commitment to helping black Americans is very much in doubt.

Mytheos Holt (@MytheosHolt) is a senior fellow at the Institute for Liberty. He has worked as a speechwriter for Sen. John Barrasso John Anthony BarrassoOVERNIGHT ENERGY: Democrats push resolution to battle climate change, sluggish economy and racial injustice | Senators reach compromise on greenhouse gas amendment stalling energy bill | Trump courts Florida voters with offshore drilling moratorium Senators reach compromise on greenhouse gas amendment stalling bipartisan energy bill The Hill's Morning Report - Sponsored by National Industries for the Blind - Trump, Biden battle over vaccine, economy; Congress returns MORE (R-Wyo.), and as a writer for publications including The Federalist.

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