
President Trump has been urged to visit a country fairground in Virginia which has become a makeshift hospital to deal with the US health care crisis.

As Republican officials continue to grumble over Obamacare, the reality on the ground is stark - people camping overnight to be first in line for free treatment at a pop-up outdoor medical center.

Hundreds of desperate patients, some in their 90s, traveled miles to be seen to by doctors who used animal stalls, articulated lorries and barns to carry out examinations and treatment.

Pictures show rows of people lying in beds being treated by doctors walking on dirty tarmac and it was described by one charity worker as a scene that might be expected in countries such as Sudan.

A volunteer wades through the scores of people receiving dental treatment on pop-up dentist chairs which are under a canopy covering dirty and stained tarmac at the Remote Area Medical Clinic in Wise, Virginia, US

A woman holds her face as she appears to be crying as she is taken for treatment after she collapsed at the Remote Area Medical Clinic in Wise

A woman displays her number as she enters the Remote Area Medical Clinic in Wise, Virginia. People slept overnight in an attempt to make sure they were one of the earliest numbers so they would be seen first by doctors

Huge crowds gather outside the Remote Area Medical (RAM) mobile clinic on July 21, 2017 in Wise, Virginia, as they aim to take advantage of the free health care on offer

People line up in the concessions queue at the Virginia-Kentucky District Fair and Horse Show which transformed into a clinic

Among those in long lines were those working part-time on $7.25-an-hour who faced bills of up to $400 on prescription glasses.

With medical bills rising, they said they were left with no option but to attend the event which meant they could get their hands on free care.

Describing the chaotic scenes, Brit Stan Brock who founded Remote Area Medical, the charity behind the event, told the Daily Telegraph: 'I just wish I could President Trump to come and see this.

'The people here are Mr Trump's constituency, they're his voters, and it drives me up the wall.

'This organisation was designed to parachute into the most God-awful places. I expected to see stuff like this in South Sudan and Haiti, but it's right here in the United States of America.'

Some Americans were there for dental care, some for tests for glaucoma and some for mammograms, but many of those receiving treatment in places usually reserved for cattle were still supportive of President Trump.

They cited rising Obamacare bills for the reason they were there, talking to the Telegraph, and were adamant the Republican property tycoon-turned-politician would turn things around for them.

A family sleeps outside in the early morning as they wait to enter a free clinic on July 22, 2017 in Wise, Virginia. The county is one of the poorest in the state, with high number of unemployed and under-insured residents.

WISE, VA - JULY 22: People sleep overnight in their cars to receive healthcare services at a free clinic on July 22, 2017 in Wise, Virginia. Hundreds of Appalachia residents waited through the night for the annual Remote Area Medical (RAM), free medical clinic held at the Wise County Fairgrounds in western Virginia

Two women relax with a cigarette on the hood of a car as they wait to enter the clinic while hundreds make their way to the entrance

Medical volunteers assist a woman who collapsed at the Remote Area Medical (RAM), mobile clinic on July 21, 2017 in Wise

Volunteers provide free dental services at the Remote Area Medical (RAM) mobile clinic on July 21, 2017 in Wise, Virginia. RAM holds the three-day event annually at the Wise County Fairgrounds, one of many free weekend clinics they hold in Appalachia, providing dental, medical and vision services to thousands of uninsured and under-insured people

A seven-year Republican effort to repeal and replace Obamacare faces a major test this week in the US Senate, where lawmakers will decide whether to move forward and vote on a bill whose details and prospects are uncertain.

The Senate will decide as early as Tuesday whether to begin debating a healthcare bill.

But it remained unclear over the weekend which version of the bill the senators would ultimately vote on.

President Donald Trump, after initially suggesting last week that he was fine with letting Obamacare collapse, has urged Republican senators to hash out a deal.

Republicans view former President Barack Obama's signature 2010 health law, known as Obamacare, as a government intrusion in the healthcare market.

They face pressure to make good on campaign promises to dismantle it.

But the party is divided between moderates concerned that the Senate bill would eliminate insurance for millions of low-income Americans, and conservatives who want to see even deeper cuts to Obamacare.

Massive crowds gather with their flasks and overnight bags as they wait through the night with their patient numbers in an attempt to be among the first treated

A sign warns volunteers and patients who to call if they are exposed to blood or body fluids. it reads: 'Body of fluid exposure. If you experience a blood or body fluid exposure while at Remote Area Medical clinic, you must immediately identify the patient (source of exposure) and contact the health department clinician'

Mallory Collins, 6, of Abington, Virginia, has her jaw examined during a teeth cleaning at the Remote Area Medical Clinic in Wise, Virginia

Two children sit up against a fence as dozens of people wait around before being treated by medical staff in Virginia

The huge scale of the Remote Medical Area clinic in Wise, Virginia, showing the lorries in which some of the treatment was carried out inside, rows of portable toilets and crowds of people

The House in May passed its healthcare bill.

Senate Republicans have considered two versions but have been unable to reach consensus after estimates showed they could lead to as many as 22 million fewer Americans being insured.

A plan to repeal Obamacare without replacing it also ran aground.

If the Senate approves a motion to begin debating a healthcare bill, Majority Leader Mitch McConnell will determine which proposal has the most Republican support and move forward to a vote, Republicans said.

Republicans hold 52 of 100 Senate seats.

A dentist speaks with a man before extracting some of his teeth at the pop-up treatment center as an assistant stands by

A man has his line number checked as he enters the Remote Area Medical Clinic which, as can be seen by the sign, is usually the VA-KY (Virginia Kentucky) District Fair and Horse Show

A group of people enter the Remote Area Medical Clinic in Wise, Virginia, ready to take advantage of the free medical treatment on offer

Jesse Skeens, 24, of Clintwood, Virginia, wears a wrist band with the word 'extractions' after he had all of the teeth from his upper jaw removed at the Remote Area Medical Clinic in Wise, Virginia

Amy Skeens, 24 and Jesse Skeens, 24, of Clintwood, Virginia, speaks with a volunteer after he had all of the teeth from his upper jaw removed. Amy and Jesse are unemployed and have a six-year-old son. They are both covered by Medicaid but are not covered for dental. Amy told of a friend who was employed but did not have medical insurance and is now in debt after suffering a heart attack. Amy said, 'Everyone needs insurance. Working people need insurance, as well'

Mallory Collins, aged six, of Abington, Virginia, prepares to have her teeth cleaned at the medical center offering free care

Kendra Farmer (center) holds Paisley, 11 months, as she waits with Logan Farmer to enter the Remote Area Medical Clinic

A man receives an eye exam at the Remote Area Medical Clinic which popped up in a county fairground in the state of Virginia

A woman looks at herself in a mirror as she tries on glasses at the Remote Area Medical Clinic in Wise, Virginia. Some reported having to pay $400 for a pair of prescription glasses through Obamacare

A man has his blood checked in at the Remote Area Medical Clinic in Wise, Virginia, on July 22, 2017

McConnell can only afford to lose two Republican votes as Democrats are united in opposition.

Senator John Barrasso, a member of the Republican leadership, acknowledged on Sunday that there remained a lack of consensus among Republicans.

'Lots of members have different ideas on how it should be best amended to replace what is really a failing Obama healthcare plan,' Barrasso said on CBS's 'Face the Nation.'

The Republican effort has also been complicated by the absence of Senator John McCain, who has been diagnosed with brain cancer and in his home state of Arizona weighing treatment options.